问题

How was the professor’s lecture?—Impressive. Thank you so much for giving me a lift during the rush hours. If not, I ________ the lecture today.

A:couldn't attend
B:might not have attended
C:mustn't have attended
D:can't have attended

正确答案是：

同类题型

Everyone said that was a perfect marriage; no one had ever known _____ couple.

He said he would come to see us thenext afternoon.

The government must be very _____ about settingpolicies and make no decision until they are quite sure it is the right one.

Two ___________ died in the fire.

want to ________ a pleasant visit, find out asmuch as possible about the manners and customs of your host country