Some people say that Mars should be protected as a wildlife reserve where we do everything possible to avoid pollution, on the _______ that life could exist on it.
| A．assumption | B．arrangement | C．assistance | D．appointment |
The rising house price and the high income tax rate have become the biggest ______ of the ordinary people in China today．
| A．concern | B．influence | C．involvement | D．occupation |
--- She will finish the project within three days!
--- ______! I could do it in three hours.
| A．You are right | B．I’m stuck | C．Oh, come on | D．Don’t mention it |
People there now have no _____ to safe drinking water due to the Japanese Earthquake.
| A．attempt | B．access | C．adjustment | D．admission |
He made a _____ of five thousand dollars on the deal.
| A．profit | B．bonus | C．pension | D．loan |
When we ran to the top of the hill, we were _____ .
| A．out of fashion | B．out of work | C．out of the question | D．out of breath |