---What do you think about the measures taken to prevent _________ global warming?
--- On __________ whole, they are good.
| A．the; a | B．the; the |
| C．不填; a | D．不填; the |
Sam _____ some knowledge of the computer just by watching others working on it．
| A．brought up | B．looked up | C．picked up | D．set up |
—Can you believe I had to pay 30 dollars for a haircut?
—You should try the barber’s I go．It’s only 15．
| A．as | B．which | C．where | D．that |
Lots of rescue workers were working around the clock, supplies to Yushu, Qinghai province after the earthquake．．．．
| A．sending | B．to send |
| C．having sent | D．to have sent |
Mark have hurried．After driving at top speed, he arrived half an hour early．
| A．needn’t | B．wouldn’t |
| C．mustn’t | D．couldn’t |
——volunteering is becoming popular in China ．
——yeah, people are now aware that helping others is helping themselves．
| A．naturally | B．increasingly |
| C．splendidly | D．successfully |