He is not sure ______ he locked the door. MCQ with Answer and Explanation

He is not sure ______ he locked the door.

A. which

B. that

C. if

D. what

Answer: Option C

'not sure if/whether'.

This question belongs to: English Pronouns

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Question #1 Report Error

The disaster ______ struck the village was terrible.

A. where

B. which

C. that

D. who

Correct Answer: Option B

Explanation:
'which'.

This question belongs to: English Pronouns

Question #2 Report Error

The backpack ______ we loaded is heavy.

A. that

B. where

C. which

D. who

Correct Answer: Option C

Explanation:
'which'.

This question belongs to: English Pronouns

Question #3 Report Error

The conference ______ I attended was boring.

A. that

B. which

C. who

D. where

Correct Answer: Option B

Explanation:
'which'.

This question belongs to: English Pronouns