问题

We _____ have proved great adventurers, but we have done the greatest march ever made in the past ten years. [ ]

A: needn't
B: may not
C: shouldn't
D: mustn't

正确答案是：

同类题型

The professor sort of dislikes the student, because he always asks some questions that have nothing to _______ his lessons.

If Alice ______this afternoon, the meeting should be put off.

________ into English，the sentence was found to have an entirely different word order[ ]

That box is____.

1—- doesthe baby mouse weigh —-About20grams.