问题
Is the letter from your mother?—Yes. But she ________ the letter herself, because she doesn’t even know one word.
A:needn't have written
B:can't have written
C:might not have written
D:should not have written
B:can't have written
C:might not have written
D:should not have written
正确答案是：
同类题型
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Can you tell me by whom the speech next Friday—Mr. Green, our geography teacher.
You’d better _____ your homework on Sunday, and bringit next Monday.
have you seen my mobile phone—______ you bought last week I’m afraid Ihaven’t seen _____