题目内容
– Listen ! Is Professor Johnson giving a report in the hall?
– No, it _______ be him. He has gone to America.
| A.needn’t | B.can’t |
| C.may not | D.mustn’t |
B
解析试题分析: 句意:---听,杰克逊教授正在大厅作报告吗?---不,肯定不是他,他去了美国。A. needn’t 不必;B. can’t肯定不; C. may not 可能不; D. mustn’t 禁止;根据句意,故选B。
考点:考查情态动词。
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