【单选题】
I asked the secretary if there were ______ tickets but she had only the expensive ______.
【单选题】
We’ve missed the last bus. I’m afraid we have no ________ but to take a taxi.
【单选题】
We should be ( )about the future
【多选题】
______________ , we went home.
③
When the problem solved
④
When the problem was solved
【单选题】
But for your help, we could not __________ .
【单选题】
A computer can only do____ you have instructed it to do.
【单选题】
He cannot be tired _______ he has walked only half a mile.
【单选题】
Xi an is only a 5-hour journey __ Beijing by the express train.
【单选题】
Not only are cars involved in most of the traffic accidents, but they also __________to the pollution of the air. .
【单选题】
If only he __________ what I tell him, but he won’t.