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20.-I hear you've just returned from Australia.
-Yeah.I ______ there on business.(  )
A.goB.wentC.have goneD.had gone

分析 ---我听说你已经从澳大利亚回来了.---是的.我去那里出差了.

解答 答案:B  该题不能用现在完成时,因为"I have gone there on business."意为"我去那里出差了"(说明我现在已经不在这里);但是根据"…you've just returned from Australia…你已经从澳大利亚回来了"可知,不是去了那里,而是已经回来了;故C 不正确.所以出差应该是发生在过去的动作,该句要用一般过去式,即使用go(不规则动词)的过去式形式went. 故选B

点评 本题考查的是一般过去时的用法,要注意它与现在完成时态的区别;还要记住规则动词及不规则动词的过去式的形式.

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