题目内容
4.It's the library!So you ______ know shouting is not allowed here.( )| A. | can | B. | must | C. | need | D. | may |
分析 这是图书馆!因此你一定知道在这里大声喊叫是不允许的.
解答 答案:B.
can能,会;must一定,必须;need需要;may可以.根据It's the library,可知在图书馆里,我们都知道不允许大声喊叫.故用must一定,必须.故选B.
点评 本题考查了情态动词的有关知识,熟知句意是解答本题的关键.
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