Passive to active: 'must be / must have been' + past participle -> must + verb / must have + past participle

This type of question, asked 2 times: 9 Sep 2024 S2, 23 Sep 2025 S3. All 2 questions below, oldest first.

Try each one first, then open its answer.

Question 1
9 Sep 2024 S2
76 $Select the option that expresses the given sentence in active voice. The homework must be done by you.$
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Question 2
23 Sep 2025 S3
94 $Convert the sentence provided below from its passive voice structure to an active voice structure: The guests must have been informed about the delay by the coordinator.$
Tap an option to check your answer.