问题

－Ididn’t know you were good friends.－You______. I have known her since she moved here. You were studying abroad then.

A:may have
B:needn’t have
C:couldn’t have
D:must have

正确答案是：

同类题型

several natives advancing towards our party, and one of themcame up to us, __________ we gave some bells and glasses.

Nowadays, there is a increase in children’s creativity, for they are greatly encouraged to develop their talents.

You should work less _____

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The doctor suggested that he smoking. [ ]