First Conditional
1. If Mary (come) to my house, we football.
2. If Ann (not come) to my house, I (read) a book.
3. If they (have) their holidays in summer, they (go) to the seaside.
4. If the fog (thicken), Harold (put up) the tent for the night.
5. If Nick (finish) his work, he (go) to the theatre.
6. I (buy) this game if our father (give) me money.
7. If we (come) to your place you (show) us your present.
8. I for my friend if he (come) from the shop.

Відповідь:

1.If Mary comes to my house, we will play football.

2.If Ann doesn't come to my house, I will read a book

3.if they have their holidays in summer, they will go to the seaside

4.If the fog thikens, Harold will put up the tent for the night

5.If Nick finishes his work, he will go to the theatre

6.I will buy this game, if our father gives me money

7. If we come to your place, you will show us your present

8. I will __?__( нет слова) for my friend, if he comes from the shop.

First Conditional is used to talk about possible future actions or situations. It expresses a cause and effect relationship, where one event or condition will lead to another. The structure of the first conditional is "if + subject + present simple, subject + will + base verb".

Now let's go through each sentence and create a clear explanation for each one:

1. If Mary (come) to my house, we (play) football.
Explanation: If Mary comes to my house, it means that she is present and available. In this situation, the action of playing football will happen. The verb "come" is in the present simple tense, and the verb "play" follows the rule for the first conditional "will + base verb".

2. If Ann (not come) to my house, I (read) a book.
Explanation: If Ann doesn't come to my house, it means that she is not present or available. In this situation, the action of reading a book will happen. The negative form of the verb "come" is used here to indicate the absence of Ann. The verb "read" follows the rule for the first conditional "will + base verb".

3. If they (have) their holidays in summer, they (go) to the seaside.
Explanation: If they have their holidays in summer, it means that their holiday time aligns with the summer season. In this situation, the action of going to the seaside will happen. The verb "have" is in the present simple tense, and the verb "go" follows the rule for the first conditional "will + base verb".

4. If the fog (thicken), Harold (put up) the tent for the night.
Explanation: If the fog thickens, it means that the fog becomes denser or heavier. In this situation, the action of Harold putting up the tent for the night will happen. The verb "thicken" is in the present simple tense, and the verb "put up" follows the rule for the first conditional "will + base verb".

5. If Nick (finish) his work, he (go) to the theatre.
Explanation: If Nick finishes his work, it means that he completes his tasks or assignments. In this situation, the action of going to the theatre will happen. The verb "finish" is in the present simple tense, and the verb "go" follows the rule for the first conditional "will + base verb".

6. I (buy) this game if our father (give) me money.
Explanation: If our father gives me money, it means that he provides the necessary funds. In this situation, the action of me buying this game will happen. The verb "give" is in the present simple tense, and the verb "buy" follows the rule for the first conditional "will + base verb".

7. If we (come) to your place, you (show) us your present.
Explanation: If we come to your place, it means that we visit your location. In this situation, the action of you showing us your present will happen. The verb "come" is in the present simple tense, and the verb "show" follows the rule for the first conditional "will + base verb".

8. I (cook) for my friend if he (come) from the shop.
Explanation: If he comes from the shop, it means that he finishes his shopping. In this situation, the action of me cooking for him will happen. The verb "come" is in the present simple tense, and the verb "cook" follows the rule for the first conditional "will + base verb".

Remember, the first conditional is used to talk about possible future actions or situations that are dependent on a certain condition being met.