题目内容
7.You have already tried your best,so you __________ worry about the matter.( )| A. | can't | B. | needn't | C. | mustn't |
分析 你已经尽力了,所以你不必为这件事担心.
解答 答案:B.can't不可能;needn't不必;mustn't禁止.根据You have already tried your best,可知已经尽力了,所以你不必为这件事担心.needn't不必.故选B.
点评 本题考查了情态动词的用法.解答时注意了解句意以及所给选项的意思并作出正确选择.
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