Many developing countries are unwilling to pursue their economic development ______ destroying the environment despite there being several financial crises.
| A．at the risk of | B．at the cost of | C．at the end of | D．at the mercy of |
I’msorryIcan’tjoinyou. I __________myhomework.
| A．haven’tfinished | B．didn’tfinish |
| C．won’tfinish | D．don’tfinish |
—Wouldyoulikesomethingtodrink,girls?
—Yes,_______,please.
| A．twocupofcoffee | B．twocup of coffees |
| C．twocupsofcoffee | D．twocups of coffees |
Time waits for no man. But teenagers won’t realize the value of time until it’s gone. Don’t waste your time, __________ you will regret it.
| A．so | B．and | C．but | D．or |
Rather than at home alone, Little Tom go to the cinema that day.
| A．stay; preferred | B．to stay; prefers to |
| C．stay; preferred to | D．stay; prefers to |
More and more foreign students come to China to learn________ Chinese language.
| A．a | B．the | C．an | D．不填 |