Mr.White____ at8:30 0 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正确答案A
Mr.White____ at8:30 0 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正确答案A