The children had only _______ slight temperature, but the doctor regarded the illness as serious enough for ________ hospital treatment.
| A．a; 不填 | B．不填; the | C．a; the | D．不填; a |
By law,when one makes a large purchase, he should have _____ opportunity to change his mind.
| A．accurate | B．adequate | C．urgent | D．excessive |
How long do you think it will be ________ the computer company puts forward a new product?
| A．before | B．since | C．until | D．that |
The famous scientist, _______ a dinner party will be held tonight,is to arrive soon.
| A．in honour of him | B．in his honour | C．in whose honour | D．in which honour |
__________twice a year, whether it is a car or bus or a truck, is the rule that every driver must obey in this city.
| A．Examining | B．Examined | C．Being examined | D．Having been examined |
--- An ant has two stomachs --- one for itself, one for others.
--- Really? Quite interesting. I ____ anything about it.
| A．don’t know | B．have known | C．haven’t known | D．didn’t know |