问题

I wonder why they’re so late. They ______ here an hour ago.

A:should be
B:might be
C:should have been
D:might have been

正确答案是：

同类题型

Have you _________ the invitation of Lily’s birthday party—Yes, but I won’t _________ it. I don’t have any time on that day.

English _____in many countries, but Chinese _____their own language.

下列句式类型不同于其他三项的一项是（　　）

My sister is very upset today. —It’s your fault .You the bad news to her yesterday.

__________I am amazed at is__________she wants to find fault with others all the time