—Is Jessica giving us a speech this evening?—No, it _________ be her.She _______

—Is Jessica giving us a speech this evening?—No, it _________ be her.She _______

题型:不详难度:来源:
—Is Jessica giving us a speech this evening?
—No, it _________ be her.She _________ to Japan.
A.mustn"t;has gone B.mustn"t; has been
C.can"t; has gone D.can"t; has been

答案
C
解析

试题分析:句意:杰西卡今晚要给我们做演讲吗?——不,不可能是她。她已经去了日本。结合语境可知下文前一句描述的是对将来的否定的推测,mustn’t表示禁止,一定不。故用can’t。后一句强调的是已完成的瞬间的动作,故用go。选C。
点评:英语完成时态中有瞬间动词与持续性动词之分,瞬间动词只表示瞬间动作,不能和表示一段时间的时间状语连用,反之持续性动词也是一样。再没有时间状语的情况下,就要结合语境具体分析。
举一反三
I prefer       to        in summer.
A.swimming, boatingB.to swim, boat
C. to swimming, boatingD.swim, boat

题型:不详难度:| 查看答案
---Do you need some milk?
---Yes, I          .
A.neededB.needC.doD.did

题型:不详难度:| 查看答案
He _________ long curly hair but my hair ______ very straight and short.
A.used to be, used to haveB.used to have , used to be
C.used to be, used to beD.used to have , used to have

题型:不详难度:| 查看答案
He is imaginative enough to _________ new ideas. We all like to work with him.
A.come outB.come up withC.come upD.come on

题型:不详难度:| 查看答案
The window was broken. Try to ________ who has broken it.
A.findB.lookC.find outD.look for

题型:不详难度:| 查看答案
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