问题

He ______ be sitting at the gate, waiting for his lostson.

A:used to
B:was used to
C:could
D:wasaccustomed

正确答案是：

同类题型

______fresh vegetables!- I myself grow them. Go to the balcony, and you can see more.

Have you telephoned your father? ——- YesHe ______back next year

He theprize the running this year.

What do you think of the plan ____ atthe meeting — Very good. But the most important is toput it into ______.

Mr. Wang, have you corrected the papers? — Yes, but I regretthat you didn’t pass it. [ ]