They dug ,then put the box in it.
| A．a three feet deep hole | B．a hole of three feet |
| C．a three feet deep hole | D．a hole of three feet deep |
The overseas Chinese scientist made another wonderful discovery, ___________ of great value to study AIDS.
| A．which I think it is | B．which I think is | C．I think it is | D．I think is |
The situation is _________ --- we have no food, very little water and no medical supplies.
| A．desperate | B．adventurous | C．deserted | D．optimistic |
The long-lasting meeting __________ in disorder, __________ no conclusion.
| A．was ended; reached | B．ended; reaching | C．was ended; reaching | D．ended; to reach |
He is only too ready to help others, seldom, _________, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
— Would you have your family get together this New Year’s Day?
— ___________. We are busy working at that time.
| A．No way | B．Not at all | C．No problem | D．No chance |