He the plants. If he had, they wouldn't have died.       A. couldn't water   B. needn't have watered    C. can't have watered    D. shouldn't water

He _______ the plants. If he had, they wouldn't have died.
A. couldn't water
B. needn't have watered
C. can't have watered
D. shouldn't water

Trả lời
Đáp án: C

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