Question

Complete the following sentence using the correct form of the verb in the brackets:

Mohan received a letter that ______ (write) by his friend 10 days ago.

• A. was writing
• B. had been written
• C. written
• D. wrote

Answer 1

Answer: (B)

had been written

Here, 'had been written' in past perfect tense is correct because it is used to indicate a completed action of the past that happened before another event took place.
'Was writing' in past continuous is incorrect because it is used to indicate a completed action of the past that happened before another event took place.
'Wrote' in simple past is incorrect because it indicates an action that has already been completed.
'Written' is incorrect because the usage of 'that' in the sentence makes it grammatically incorrect.