33. There was no light in the dormitory last night. So, they ________ to the lecture then.
A. must have gone B. should have gone
C. needn’t have gone D. couldn’t have gone
33. There was no light in the dormitory last night. So, they ________ to the lecture then.
A. must have gone B. should have gone
C. needn’t have gone D. couldn’t have gone
A