What no one would like to believe is that such a well-behaved gentleman _______ be a cheat!
| A．could | B．may | C．ought to | D．should |
_____ the front door ___, he had to enter the room through the back door.
| A．Seen, painted | B．Seeing, painted |
| C．Seeing, being painted | D．Being seen, being painted |
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 |