Question

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

Answer 1

答案：A
解析：

首先排除C项，因为无此形式；should＋动词原形表示“现在或将来应该” ；should＋be doing表示“现在应该正做某事”；should have＋过去分词表示“过去本该做某事而未做”。根据题意，A项符合本题要求。