题目内容
16．-Can you go to the movies tomorrow night？-Sorry，I study for an English test．（ ）
| A． | must | B． | mustn't | C． | can | D． | can't |
分析 --明天晚上你能去看电影吗？
--抱歉，我必须为英语测试而学习．
解答 答案：A．
must一定，必须；mustn't不可以；can能，能够；can't不可能．根据Sorry，I study for an English test，可知我不能去看电影，因为我必须英语测试而学习，因为考试，所以必须学习．must一定，必须．故选A．
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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