问题
选择题
--- He didn’t turn up last night, did he?
--- Yes. But he _______. The meeting had been cancelled.
A．shouldn’t have come
B．needn’t have come
C．didn’t need to come
D．needn’t come
答案
答案：B
考查情态动词。句中needn’t have done本没有必要做，句意：——他昨天晚上没有出现，是吗？——不，但他本没有必要来。会议已经取消了。