The time he has devoted in the past years _______ the disable is now considered ________ of great value.
| A．to help; being | B．to helping; to be |
| C．to help; to be | D．helping; being |
—Didn't the teacher see him entering the classroom?
—No, he_______ on the blackboard.
| A．was writing | B．had written |
| C．wrote | D．is writing |
It is reported in the papers that the old coins _______under the earth for about 200 years by the time they were discovered.
| A．had buried | B．had been buried |
| C．buried | D．were buried |
The comments the expert made ______ stock-market bothered him greatly, ______ him not fall asleep all night.
| A．concerning, making | B．be concerned, which made |
| C．concerned, making | D．to be concerning, made |
As I’ll be away for at least a year, I’d appreciate _______ from you now and then telling me how everyone is getting along.
| A．hearing | B．to hear |
| C．to be hearing | D．having heard |
According to the rules, the librarian will have you _______ if you don’t return the books borrowed from the library in time.
| A．to be fined | B．fined |
| C．fine | D．being fined |