问题

You are not supposed to get off the bus________ it stops.
A:/
B:a
C:an
D:the
B:a
C:an
D:the
正确答案是:
同类题型
Seeing the stranger _______, the frightened baby couldn’t help ______ crying.
______room is on the third floor and _______is on the second floor.
Do you think that I can win the final—________. Everyone stands a chance.
Is this a photo ____ your father
It is in Qingdao ___ you’re going to pay a visit to ____ this kind of washing machine is produced.