题目内容
4.-Listen!Is Professor Johnson giving a report in the hall?-No,it be him.He's gone to Japan.It be Mr.Brown.He was invited last week.( )
| A. | may; may | B. | can't; may | C. | can't; must | D. | may; must |
分析 ---听!杰克逊教授正在大厅做报告.
---不,肯定不是他,他去了日本,可能是布朗先生,上周邀请他了.
解答 答案:B.结合He's gone to Japan可知肯定不是他,故用can't be表示否定猜测,后文He was invited last week是指可能性,故may,故答案是B.
点评 must表示推测时,只用于肯定句,表示很大的可能性,意为"一定,准是,必然会".其否定形式是 can't
may,might表示推测"可能性"时,意思是"可能"、"也许",语气没有 must肯定
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