题目内容
19.You ____ swim in the river here.It's dangerous.( )| A. | can't | B. | may not | C. | mustn't | D. | needn't |
分析 你不可以在这儿的河里游泳,这很危险.
解答 答案:C.
A.can't不能够; B.may not可能不; C.mustn't不准,不可以; D.needn't不必,根据It's dangerous,可知这很危险,所以你不可以在这儿的河里游泳.mustn't不准,不可以.故选C.
点评 本题考查了情态动词的用法.解答时注意句意的理解以及所给选项的意思.
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