Restructure the sentence in passive voice in present perfect tense: ...

★ Passive Modals in Different Tenses

Restructure the sentence in passive voice in present perfect tense: They have completed the task.

A. They have been completing the task.

B. The task has been completing by them.

C. The task has been completed by them.

D. The task has been completed by they.

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People shouldn’t keep wild animals as pets.

A. People shouldn’t keep domestic animals as pets.

B. People should keep wild animals as pets.

C. Wild animals should be kept as pets.

D. Wild animals shouldn’t be kept as pets.