The project ______ last month but unfortunately it had to be prolonged because of the financial problem.

A. needn’t have been finished B. shouldn’t have finished

C. could have been finished      D. must have finished

 

C

【解析】

試題分析：句意：這個(gè)項(xiàng)目本來是可以在上個(gè)月完成，但是不幸的是，因?yàn)樨?cái)政問題，它不得不被延期。從but unfortunately it had to be prolonged because of the financial problem.可知這是對(duì)過去的虛擬，用could have done表示“本可以做卻沒有做”，所以選C.

考點(diǎn)：考查情態(tài)動(dòng)詞和虛擬語氣

 

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