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
怀特先生应该8∶30到会的，但他还没露面。全句谈的是过去的事，故应使用should have done结构，表示本该做某事而未做。