—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
C

試題分析:句意:杰西卡今晚要給我們做演講嗎?——不,不可能是她。她已經(jīng)去了日本。結(jié)合語(yǔ)境可知下文前一句描述的是對(duì)將來(lái)的否定的推測(cè),mustn’t表示禁止,一定不。故用can’t。后一句強(qiáng)調(diào)的是已完成的瞬間的動(dòng)作,故用go。選C。
點(diǎn)評(píng):英語(yǔ)完成時(shí)態(tài)中有瞬間動(dòng)詞與持續(xù)性動(dòng)詞之分,瞬間動(dòng)詞只表示瞬間動(dòng)作,不能和表示一段時(shí)間的時(shí)間狀語(yǔ)連用,反之持續(xù)性動(dòng)詞也是一樣。再?zèng)]有時(shí)間狀語(yǔ)的情況下,就要結(jié)合語(yǔ)境具體分析。
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