问题
选择题
—— I didn’t see her yesterday.
—— Oh, but you ＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿.
A．must have
B．ought to
C．should have
D．cannot have
答案
答案：C
should／ought to have done表示“本来应该做的事而事实上并未做”。根据上下文，句中省去了seen her。
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