There is no doubt that your fluent English will give you a (an) _______ over other competitors for volunteers in Expo 2010 Shanghai.
| A． benefit | B． profit | C． advantage | D． reward |
Most of the evidence was destroyed in the fire.__________, it would be almost impossible to prove Jim guilty.
| A．Anyhow | B．However |
| C．Besides | D．Thus |
My father read through my composition and _________quite a few spelling mistakes in it.
| A．sought | B．issued |
| C．spotted | D．consulted |
It was about 600 years ago _______the first clock with a face and an hour hand was made.
| A．until | B．when |
| C．before | D．that |
If you_______ smoke, please go outside.
| A．can | B．should |
| C．must | D．may |
Every means _________tried but without any result.
| A．have been | B．has been |
| C．are to be | D．is to be |