用情态动词或否定形式填空1、He ---be at home now ,because he called me from the office just now
2、It ---be dangerous to smoke at the gas station.
3、He ------be the best student in his class ,for he never words hard .But if he words hard,he ----be .
人气：278 ℃ 时间：2019-10-17 13:51:27
解答
can't （根本不可能）
2.must(肯定）
3.can't (根本不可能）.may/might(有可能）
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