№1. Passive voice. Put the verbs in brackets into the correct form:
1. The office (clean) every morning.
2. This castle (build) by my parents a long time ago.
3. The sentence (just write) by me.
4. Christmas (celebrate) by Christians all over the world.
5. The car (repair) before Jim has to go to London. – Машину починят…
6. They (just award) with gold medals!
7. His new book (publish) by last Monday. – Книгу напечатали…
8. The carpets (wash) at the moment.
9. You (give) enough time. – Вам дадут время.
10. Letters (often write) by hand.
№2. Reported speech. Rewrite sentences into reported speech:
1. “My name is Harry”, he said.
2. “Harry Potter will help us to do this”, Hermione said.
3. “Can your cat swim?”, my aunt asked.
4. “Has she done her homework yet”, her sister asked.
5. “What do you think about your future education?” he asked.
6. “I’ve never seen such beautiful dress”, she said.
7. “My teachers don’t understand my jokes”, Bart said.
8. “Put on your jacket, please” (she).
9. “What are your interests?”, boy asked.
10. “Don’t waste my time!” (she).
11. “When will you visit your best friend?”, my mom asked.
№3. Modal verbs. Rewrite sentences using verbs in the brackets:
1. She just doesn’t know how to ride a horse. (be able to)
2. Probably she’s at her office. (could)
3. It is dangerous to use mobile phones on the plane. (mustn’t)
4. My mom knew how to cook when she was six. (could)
5. This is a surprise. Don’t tell anybody about it. (shouldn’t)
6. It’s possible that he’ll be there to meet us. (may)
7. He isn’t sure if his dad is going to give him a car. (might not)
8. Do not block this exit. (mustn’t)
9. It is necessary to fasten your seat belt. (must)

№1. Passive voice:
1. The office is cleaned every morning. (Present simple passive)
2. This castle was built by my parents a long time ago. (Past simple passive)
Explanation: In the passive voice, the subject of the sentence is the receiver of the action, rather than the doer of the action. To form the passive voice, we use the auxiliary verb "to be" and the past participle of the main verb.

3. The sentence has just been written by me. (Present perfect passive)
4. Christmas is celebrated by Christians all over the world. (Present simple passive)
Explanation: The passive voice is used when the focus is on the action or the object of the action, rather than the doer. In a passive sentence, the subject receives the action.

5. The car will be repaired before Jim has to go to London. (Future simple passive)
Explanation: To form the future passive, we use the auxiliary verb "will be" and the past participle of the main verb.

6. They have just been awarded with gold medals! (Present perfect passive)
Explanation: The use of "been" shows that the action has been completed in the past.

7. His new book was published by last Monday. (Past simple passive)
Explanation: In the passive voice, we use the past participle form of the main verb.

8. The carpets are being washed at the moment. (Present continuous passive)
Explanation: In the passive voice, we use the auxiliary verb "to be" with the present participle form of the main verb.

9. You will be given enough time. (Future simple passive)
Explanation: In the passive voice, we use the auxiliary verb "will be" with the past participle form of the main verb.

10. Letters are often written by hand. (Present simple passive)
Explanation: In the passive voice, we use the past participle form of the main verb.

№2. Reported speech:
1. He said that his name was Harry.
Explanation: In reported speech, we use the past tense to report what someone said.

2. Hermione said that Harry Potter would help them to do that.
Explanation: When reporting an indirect statement, we often change the tense of the verb.

3. My aunt asked if my cat could swim.
Explanation: In reported speech, we change the question into an indirect question.

4. Her sister asked if she had done her homework yet.
Explanation: In reported speech, we change the tense of the verb.

5. He asked what I thought about my future education.
Explanation: In reported speech, we report the exact words spoken, changing the pronouns and verb tenses if necessary.

6. She said that she had never seen such a beautiful dress.
Explanation: In reported speech, we change the tense of the verb.

7. Bart said that his teachers didn't understand his jokes.
Explanation: In reported speech, we change the tense of the verb.

8. She told me to put on my jacket.
Explanation: In reported speech, we change the person and the verb tense.

9. The boy asked what my interests were.
Explanation: In reported speech, we often change the pronouns and verb tenses if necessary.

10. She told me not to waste her time.
Explanation: In reported speech, we change the person and the verb tense.

11. My mom asked when I would visit my best friend.
Explanation: In reported speech, we change the tense of the verb.

№3. Modal verbs:
1. She just isn't able to ride a horse. (be able to)
2. She could be at her office. (could)
Explanation: "Could" is used to express possibility in the past and the present.

3. You mustn't use mobile phones on the plane. (mustn't)
4. My mom could cook when she was six. (could)
Explanation: "Could" is used to express ability in the past.

5. You shouldn't tell anybody about this surprise. (shouldn't)
6. It may be possible that he'll be there to meet us. (may)
Explanation: "May" is used to express possibility in the future.

7. He might not be sure if his dad is going to give him a car. (might not)
8. You mustn't block this exit. (mustn't)
9. You must fasten your seat belt. (must)
Explanation: "Must" expresses necessity and obligation in the present.