She had just finished her homework ______ her mother asked her to practise playing the piano yesterday.
| A．when | B．while | C．after | D．since |
Should the wallet, found in the street, be put into a pocket _______ turned over to the policeman?
| A．and | B．or | C．then | D．but |
After having failed many times, the young man refused to try it _______.
| A．again and again | B．once more | C．less | D．over and over again |
At first nothing happened _______ suddenly a large rat rushed out of the house,…
| A．Then | B．And | C．Or | D．So |
Why did you ask him for help instead of Jim? He is _______ helpful than Jim.
| A．no more | B．any more | C．not more | D．some more |
A transistor radio is sometimes very small. It is very easy to carry…_______, radio broadcasts are better for blind people.
| A．Besides | B．However | C．Yet | D．Sometimes |