"Mr.White _________ at 8:30 for the meeting, but he didn’t show up."

A. should have arrived
B. should arrive
C. should have had arrived
D. should be arriving

第1个回答  2013-09-02
答案A
题意是“瓦特先生应该八点半到会,但是,他没到”。这是一个带有含蓄条件句的虚拟语气。C项错,因为无此形式;should+have done表示过去应该干,但是没有干;should be doing表示现在应该正干某事。A项符合本题要求。
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