I was about to go out _______ the telephone rang yesterday．
| A．when | B．after | C．before | D．Since |
________a certain doubt among the people as to the practical value of the project.
| A．It has | B．They have |
| C．It remains | D．There remains |
We ________ contact with each other for years. And last week we ________ contact again.
| A．lost; made | B．have been out of; got into |
| C．had been out of; made | D．came; kept |
The hotel wanted to charge $150 for the room service, but we couldn't ____________ to live in such an expensive hotel.
| A．pay | B．afford | C．charge | D．pay for |
As is reported, it is 100 years________ Qinghua University was founded.
| A．when | B．before | C．after | D．since |
—What a mistake!
—Yes. I________his doing it another way, but without
success.
| A．was suggesting | B．will suggest |
| C．would suggest | D．had suggested |