Exercise 1. Use the proper article.
Note. Pay attention to the use of the article with the noun predicative, the noun object and the noun subject (in sentences with the introductory there).
1. Have you ... grandfather? 2. There is ... garden behind ... house. 3. My brother-in-law is ... writer and his wife is ... doctor. 4. These are ... difficult sentences. 5. I have ... father, ... mother and ... little sister. 6. What's ... matter with you? 7. We are ... students of ... English faculty. 8. There came ... knock at ... door. 9. Benny is already in ... bed. 10. Once there lived ... captain brave. 11. ... Doctor Smith is still at ... hospital. 12. This isn't ... snow, this is ... ice. 13. She has ... velvet dress. 14. He is ... good-looking young man of 20. 15. There are ... beautiful flowers in ... park. 16. Is she ... college graduate?

Exercise 2. Use the proper article.
1. Come to ... blackboard and write... Exercise 12. 2. You have ... spelling mistake in ... word "nursery". 3. He is ... old friend of mine. 4. There came ... tap at ... door and in another moment we saw ... small girl enter ... room. 5. He is ... young artist and, I should say, rather talented. 6. He gave her ... cigarette and lighted it. 7. I. don't feel ... sympathy towards this man. 8. They are going to build ... new house. 9. Are ... rooms in your flat large or small? 10. ... hour is a long time. In ... hour you can read ... newspaper, or write ... letter. 11. What ... beautiful music he is playing! 12. In every remark he found ... meaning but not always the true meaning. 13. There is ... curiosity in her look. 14. ... Sandfords have ... nice house. ... house isn't large but comfortable.

Exercise 3. Use the required tense instead of the infinitives in brackets.
1. My little sister (to go) to school every day. 2. The sun (to rise) in the East. 3. Bad students never (to work) hard. 4. It often (to snow) in winter. 5. He (to wake up) at seven and (to have) breakfast at half past seven. 6. The teacher (to point) at the blackboard when he (to want) to explain something. 7. Mother always (to cook) in the morning. 8. I (to see) what you mean. 9. She (to say), she (to hear) nothing. 10. There (to be) a girl downstairs who (to want) to see you. 11. My friend (to go) there nearly every week.

Exercise 1. Use the proper article.

1. Have you got a grandfather?

Explanation: In this sentence, the word "grandfather" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it.

2. There is a garden behind the house.

Explanation: In this sentence, the word "garden" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "house" is also a singular countable noun and it is not the first mention, so we don't use any article before it.

3. My brother-in-law is a writer and his wife is a doctor.

Explanation: In these sentences, the words "writer" and "doctor" are singular countable nouns and they are the first mentions, so we use the indefinite article "a" before them.

4. These are difficult sentences.

Explanation: In this sentence, the word "sentences" is a plural countable noun and it is the first mention, so we don't use any article before it. The word "difficult" is an adjective modifying the noun "sentences".

5. I have a father, a mother, and a little sister.

Explanation: In this sentence, the words "father," "mother," and "sister" are singular countable nouns and they are the first mentions, so we use the indefinite article "a" before them.

6. What's the matter with you?

Explanation: In this sentence, the word "matter" is a singular uncountable noun and it is the first mention, so we use the definite article "the" before it. The word "you" is a pronoun and we don't use any article before it.

7. We are students of the English faculty.

Explanation: In this sentence, the word "students" is a plural countable noun and it is the first mention, so we don't use any article before it. The words "English" and "faculty" are singular countable nouns and they are the first mentions, so we use the definite article "the" before them.

8. There came a knock at the door.

Explanation: In this sentence, the word "knock" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "door" is a singular countable noun and it is not the first mention, so we don't use any article before it.

9. Benny is already in bed.

Explanation: In this sentence, the word "bed" is a singular countable noun and it is not the first mention, so we don't use any article before it.

10. Once there lived a brave captain.

Explanation: In this sentence, the word "captain" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "brave" is an adjective modifying the noun "captain".

11. Doctor Smith is still at the hospital.

Explanation: In this sentence, the word "Doctor" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "hospital" is a singular countable noun and it is not the first mention, so we use the definite article "the" before it.

12. This isn't snow, this is ice.

Explanation: In this sentence, the words "snow" and "ice" are uncountable nouns and they are the first mentions, so we don't use any article before them. The word "This" is a demonstrative pronoun and we don't use any article before it.

13. She has a velvet dress.

Explanation: In this sentence, the word "dress" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "velvet" is an adjective modifying the noun "dress".

14. He is a good-looking young man of 20.

Explanation: In this sentence, the word "man" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The words "good-looking," "young," and "20" are adjectives modifying the noun "man".

15. There are beautiful flowers in the park.

Explanation: In this sentence, the word "flowers" is a plural countable noun and it is the first mention, so we don't use any article before it. The words "beautiful" and "park" are adjectives modifying the noun "flowers".

16. Is she a college graduate?

Explanation: In this sentence, the word "graduate" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "college" is a singular countable noun and it is not the first mention, so we use the definite article "the" before it. The word "she" is a pronoun and we don't use any article before it.

Exercise 2. Use the proper article.

1. Come to the blackboard and write Exercise 12.

Explanation: In this sentence, the words "blackboard" and "Exercise 12" are singular countable nouns and they are the first mentions, so we use the indefinite article "the" before them.

2. You have a spelling mistake in the word "nursery".

Explanation: In this sentence, the words "spelling mistake" and "word" are singular countable nouns and they are the first mentions, so we use the indefinite article "a" before them. The word "nursery" is a singular countable noun and it is not the first mention, so we don't use any article before it.

3. He is an old friend of mine.

Explanation: In this sentence, the word "friend" is a singular countable noun and it is the first mention, so we use the indefinite article "an" before it. The word "old" is an adjective modifying the noun "friend".

4. There came a tap at the door and in another moment we saw a small girl enter the room.

Explanation: In this sentence, the words "tap" and "girl" are singular countable nouns and they are the first mentions, so we use the indefinite articles "a" before them. The word "door" is a singular countable noun and it is not the first mention, so we don't use any article before it. The word "room" is a singular countable noun and it is not the first mention, so we use the indefinite article "the" before it. The word "small" is an adjective modifying the noun "girl".

5. He is a young artist and, I should say, rather talented.

Explanation: In this sentence, the word "artist" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The words "young" and "talented" are adjectives modifying the noun "artist".

6. He gave her a cigarette and lighted it.

Explanation: In this sentence, the word "cigarette" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "it" is a pronoun and we don't use any article before it.

7. I don't feel any sympathy towards this man.

Explanation: In this sentence, the word "sympathy" is an uncountable noun and it is the first mention, so we don't use any article before it. The word "man" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "any" is used to indicate a negative statement.

8. They are going to build a new house.

Explanation: In this sentence, the word "house" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The word "new" is an adjective modifying the noun "house".

9. Are the rooms in your flat large or small?

Explanation: In this sentence, the word "rooms" is a plural countable noun and it is the first mention, so we use the definite article "the" before it. The words "large" and "small" are adjectives modifying the noun "rooms". The word "flat" is a singular countable noun and it is not the first mention, so we use the definite article "your" before it.

10. An hour is a long time. In an hour you can read a newspaper, or write a letter.

Explanation: In these sentences, the word "hour" is a singular countable noun and it is the first mention, so we use the indefinite article "an" before it. The words "long," "newspaper," and "letter" are adjectives modifying the noun "hour".

11. What beautiful music he is playing!

Explanation: In this sentence, the word "music" is a singular uncountable noun and it is the first mention, so we use the indefinite article "What" before it. The word "beautiful" is an adjective modifying the noun "music". The word "he" is a pronoun and we don't use any article before it.

12. In every remark he found a meaning but not always the true meaning.

Explanation: In this sentence, the word "remark" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The words "meaning" and "true meaning" are singular countable nouns and they are not the first mentions, so we use the indefinite article "the" before them. The word "every" is used to indicate all the cases.

13. There is curiosity in her look.

Explanation: In this sentence, the word "curiosity" is an uncountable noun and it is the first mention, so we don't use any article before it. The word "look" is a singular countable noun and it is not the first mention, so we use the indefinite article "her" before it.

14. The Sandfords have a nice house. Their house isn't large but comfortable.

Explanation: In these sentences, the word "Sandfords" is a proper noun and we don't use any article before it. The word "house" is a singular countable noun and it is the first mention, so we use the indefinite article "a" before it. The words "nice" and "comfortable" are adjectives modifying the noun "house". The word "their" is a possessive pronoun and we use it to indicate that the house belongs to the Sandfords.

Exercise 3. Use the required tense instead of the infinitives in brackets.

1. My little sister goes to school every day.

Explanation: In this sentence, the infinitive "to go" is replaced with the present simple tense "goes" to show that it is a habitual action.

2. The sun rises in the East.

Explanation: In this sentence, the infinitive "to rise" is replaced with the present simple tense "rises" to show a fixed, repeated event.

3. Bad students never work hard.

Explanation: In this sentence, the infinitive "to work" is replaced with the present simple tense "work" to show a general truth or a habitual action.

4. It often snows in winter.

Explanation: In this sentence, the infinitive "to snow" is replaced with the present simple tense "snows" to show a repeated event in a general sense.

5. He wakes up at seven and has breakfast at half past seven.

Explanation: In this sentence, the infinitives "to wake up" and "to have" are replaced with the present simple tense "wakes up" and "has" to show habitual actions.

6. The teacher points at the blackboard when he wants to explain something.

Explanation: In this sentence, the infinitives "to point" and "to want" are replaced with the present simple tense "points" and "wants" to show habitual actions.

7. Mother always cooks in the morning.

Explanation: In this sentence, the infinitive "to cook" is replaced with the present simple tense "cooks" to show a habitual action.

8. I see what you mean.

Explanation: In this sentence, the infinitive "to see" is replaced with the present simple tense "see" in order to express the action in the present.

9. She says, she hears nothing.

Explanation: In this sentence, the infinitives "to say" and "to hear" are replaced with the present simple tense "says" and "hears" to show present actions.

10. There is a girl downstairs who wants to see you.

Explanation: In this sentence, the infinitives "to be" and "to want" are replaced with the present simple tense "is" and "wants" to show present actions.

11. My friend goes there nearly every week.

Explanation: In this sentence, the infinitive "to go" is replaced with the present simple tense "goes" to show a habitual action.