问题

The bus ____ at six, but it arrived an hour later.

A:should arrive
B:had arrived
C:should have arrived
D:must arrive

正确答案是：

同类题型

We’ll make a trip to Hainan Island next weekend. Will you go with us—No, I can’t _____ it at present because I have little money.

Do you mind if I take off my jacket —_______

When would it be __________ for you to go to the science museum with me?— I am free this Friday afternoon.Let’s meet at 2 p. m.at the school gate. [ ]

He focused his effort ____the house___sale for fear that the prices of them would go up suddenly.

下列各组句子中，加点词的用法相同的一项是（）