7.---Catherine,will you visit us this weekend?
---I planned to,but something unexpected _____.( 。
A.has come upB.was coming upC.had come upD.would come up

分析 --Catherine,這個周末你要看我們嗎?
---我本來計劃去的,但有某件意料之外的事發(fā)生了.

解答 答案為A.根據(jù)"I planned to"可知我本來計劃去的,但是由于意料之外的事發(fā)生所以去不了了,未預(yù)料到的事發(fā)生在過去,但是對現(xiàn)在產(chǎn)生了影響,所以用現(xiàn)在完成時,故選A.

點評 考查現(xiàn)在完成時.現(xiàn)在完成時常常表示過去的動作對現(xiàn)在造成的結(jié)果和影響,通過上下句可以判斷.

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