Выполнить следующее задание ( можно писать ответ) 1. I('ve lost/'ve been lost) my keys! 2. Martha (is being made / is making) good progress. 3. The bag (was found / found )in a black cab. 4. I'm (being sent / sending ) an email. 5. German (speaks / Is spoken ) in Switzerland. 6. Your salads (are prepared / are being prepared ) right now. 7. They might (see / be seen) a baby panda at the zoo. 8. This door should ( keep / be kept ) locked at all times. 9. Up to now , three new houses ( have been built / have built ) in this area. 10. His teacher (has given /has been given ) him a lot of homework for the weekend. 11. The book ( will publish / will be published ) next spring. 2)Переписать упражнение в пассивном залоге. 1. Tom has made the best suggestion. 2.The teacher will finish our progress reports tomorrow. 3. The taxi driver drove us to the airport. 4. The students had made posters for the school fete. 5. Someone is preparing our lunch. 6. The painter should paint the room white. 7. Someone was following me.

1. I've lost my keys!

Explanation: In this sentence, the correct form is "I've lost" because it indicates a past action that was completed. The verb "to lose" is an irregular verb, and its past participle form is "lost".
Step-by-step solution: The subject of the sentence is "I", which refers to the speaker. The verb is "lost", which is the past participle form of the verb "to lose". The auxiliary verb "have" is used to form the present perfect tense. Therefore, the correct answer is "I've lost".

2. Martha is making good progress.

Explanation: In this sentence, the correct form is "is making" because it indicates an ongoing action in the present. The verb "to make" is a regular verb and doesn't change in the present continuous tense.
Step-by-step solution: The subject of the sentence is "Martha", which refers to a person. The verb is "making", which is the present participle form of the verb "to make". The auxiliary verb "is" is used to form the present continuous tense. Therefore, the correct answer is "Martha is making".

3. The bag was found in a black cab.

Explanation: In this sentence, the correct form is "was found" because it indicates a past action that was completed. The verb "to find" is an irregular verb, and its past participle form is "found".
Step-by-step solution: The subject of the sentence is "The bag". The verb is "found", which is the past participle form of the verb "to find". The auxiliary verb "was" is used to form the past simple tense in the passive voice. Therefore, the correct answer is "The bag was found".

4. I'm sending an email.

Explanation: In this sentence, the correct form is "I'm sending" because it indicates an ongoing action in the present. The verb "to send" is a regular verb and doesn't change in the present continuous tense.
Step-by-step solution: The subject of the sentence is "I", which refers to the speaker. The verb is "sending", which is the present participle form of the verb "to send". The auxiliary verb "am" is used with the pronoun "I" to form the present continuous tense. Therefore, the correct answer is "I'm sending".

5. German is spoken in Switzerland.

Explanation: In this sentence, the correct form is "Is spoken" because it indicates a fact or a general truth. The verb "to speak" changes to "Is spoken" in the present simple tense when used in the passive voice.
Step-by-step solution: The subject of the sentence is "German". The verb is "spoken", which is the past participle form of the verb "to speak". The auxiliary verb "is" is used to form the present simple tense in the passive voice. Therefore, the correct answer is "German is spoken".

6. Your salads are being prepared right now.

Explanation: In this sentence, the correct form is "are being prepared" because it indicates an ongoing action in the present. The verb "to prepare" is a regular verb and doesn't change in the present continuous tense.
Step-by-step solution: The subject of the sentence is "Your salads". The verb is "being prepared", which is the present participle form of the verb "to prepare". The auxiliary verb "are" is used to form the present continuous tense. Therefore, the correct answer is "Your salads are being prepared".

7. They might be seen

Explanation: In this sentence, the correct form is "might be seen" because it indicates a possibility or a potential action. The verb "to see" changes to "be seen" in the infinitive form when used in the passive voice.
Step-by-step solution: The subject of the sentence is "They". The verb is "be seen", which is the infinitive form of the verb "to see" in the passive voice. The modal verb "might" is used to indicate possibility. Therefore, the correct answer is "They might be seen".

8. This door should be kept locked at all times.

Explanation: In this sentence, the correct form is "should be kept" because it indicates a recommendation or an obligation. The verb "to keep" changes to "be kept" in the infinitive form when used in the passive voice.
Step-by-step solution: The subject of the sentence is "This door". The verb is "be kept", which is the infinitive form of the verb "to keep" in the passive voice. The modal verb "should" is used to indicate a recommendation or an obligation. Therefore, the correct answer is "This door should be kept".

9. Up to now, three new houses have been built in this area.

Explanation: In this sentence, the correct form is "have been built" because it indicates a past action that was completed. The verb "to build" is an irregular verb, and its past participle form is "built".
Step-by-step solution: The subject of the sentence is "three new houses". The verb is "been built", which is the past participle form of the verb "to build". The auxiliary verb "have" is used to form the present perfect tense in the passive voice. Therefore, the correct answer is "Up to now, three new houses have been built".

10. His teacher has given him a lot of homework for the weekend.

Explanation: In this sentence, the correct form is "has given" because it indicates a past action that was completed. The verb "to give" is an irregular verb, and its past participle form is "given".
Step-by-step solution: The subject of the sentence is "His teacher". The verb is "has given", which is the past participle form of the verb "to give". The auxiliary verb "has" is used to form the present perfect tense. Therefore, the correct answer is "His teacher has given".

11. The book will be published next spring.

Explanation: In this sentence, the correct form is "will be published" because it indicates a future action. The verb "to publish" changes to "be published" in the infinitive form when used in the passive voice.
Step-by-step solution: The subject of the sentence is "The book". The verb is "be published", which is the infinitive form of the verb "to publish" in the passive voice. The modal verb "will" is used to indicate future tense. Therefore, the correct answer is "The book will be published".

Now, let's rewrite the sentences in the passive voice:

1. The best suggestion has been made by Tom.
2. Our progress reports will be finished by the teacher tomorrow.
3. We were driven to the airport by the taxi driver.
4. The posters for the school fete had been made by the students.
5. Our lunch is being prepared by someone.
6. The room should be painted white by the painter.
7. I was being followed by someone.