【題目】--- Catherine, will you visit us this weekend?

--- I planned to, but something unexpected _____.

A. has come up B. was coming up

C. had come up D. would come up

【答案】A

【解析】

試題分析:句意：---凱瑟琳，你這個周末來看我們嗎？--我計劃去了，但是一些意外的事情發(fā)生了。根據(jù)情景可知說話人因事而不能前去拜訪，故用現(xiàn)在完成時表示影響性。

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