Doctor Wangat seven o’clock for the conference but she didn’t turn up. A. should have arr

问题补充：

Doctor Wangat seven o’clock for the conference, but she didn’t turn up.

A. should have arrived

B. should arrive

C. should be arrived

D. should be arriving

答案：

(答案→)A. should have arrived

B. should arrive

C. should be arrived

D. should be arriving

解析：考查情态动词完成式的用法。句意：王医生应该7点到达开会的，但是她没有露面。“should/could+动词的完成式”常用来表示“本应该/能够做某事，而实际上并没有做”，通常表示遗憾，埋怨之意。其否定形式表示“本不应该/不可能做某事，而实际上却已经做了”。选A。