题目内容
16．-Look!The man at the gate _______ be our headmaster．He is always standing there to welcome us every morning．-No，it _______ be him．He is holding a meeting in the office now．（ ）
| A． | must； can't | B． | must； mustn't | C． | can't； mustn't |
分析 --看！在大门口的那个人肯定是我们的校长．每天早上他总是站在那里欢迎我们．
--不，不可能是他．他现在办公室开会．
解答 答案：A．
根据He is always standing there to welcome us every morning，可知每天早上他总是站在那里欢迎我们，所以那个人一定是我们的校长，所以这里用must，再根据He is holding a meeting in the office now，可知他现在办公室开会，所以不可能是他，所以用can't．故选A．
点评 本题考查了情态动词的用法．熟知句意以及所给选项的意思是解答本题的关键．
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任务1：阅读短文（A），用方框中所给的词的适当形式填空，使文章通顺、连贯、合理．（每空一词，每个词限用一次）
| ability begin your difference heavy description daily put |
任务1：阅读短文（A），用方框中所给的词的适当形式填空，使文章通顺、连贯、合理．（每空一词，每个词限用一次）