Select the correct passive voice of: 'They could not understand the problem.' MCQ with Answer and Explanation

Select the correct passive voice of: 'They could not understand the problem.'
A. The problem could not be understood by them.
B. The problem cannot be understood by them.
C. The problem could not be understand by them.
D. The problem could not understood by them.
Answer: Option A
Solution (By JKExamLibrary)
Modal negative 'could not': Object + could + not + be + past participle + by + subject.

This question belongs to: English Active and Passive Voice

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Practice More Active and Passive Voice Questions

Question #1 Report Error
Select the correct passive voice of: 'They consider him an expert.'
A. He has been considered an expert.
B. He was considered an expert.
C. He is being considered an expert.
D. He is considered an expert.

Correct Answer: Option D


Explanation:
Simple present, complement 'an expert' remains. 'He is considered an expert.'

This question belongs to: English Active and Passive Voice
Question #2 Report Error
They say that he is a saint.
A. He is said to be a saint.
B. It was said that he is a saint.
C. It is said that he is a saint.
D. He is said that he is a saint.

Correct Answer: Option C


Explanation:
Impersonal passive: They say → It is said.

This question belongs to: English Active and Passive Voice
Question #3 Report Error
Choose the correct active voice of: 'The letter had been posted before I reached.'
A. They had posted the letter before I reached.
B. They were posting the letter before I reached.
C. They have posted the letter before I reached.
D. They posted the letter before I reached.

Correct Answer: Option A


Explanation:
Past perfect passive 'had been posted' → active 'They had posted the letter before I reached'.

This question belongs to: English Active and Passive Voice