In Britain,sales of cigarettes have been reduced __________ 30% in the past ten years.
| A．for | B．to | C．from | D．by |
Although this sound like a simple task，great care is needed．
| A．must | B．may | C．shall | D．should |
Two—thirds of the money on tents for the homeless people in Wen—
chuan．
| A．have been spent | B．had spent |
| C．were spent | D．was spent |
—This bag is perfect. Miss, how much does it cost?
—________, but I don’t work here.
| A．I don’t know | B．I’m sorry | C．Maybe very dear | D．You can’t afford it |
The motorcycle competition in the desert, ________ lasted ten days, is over now.
| A．it | B．where | C．which | D．that |
We didn’t plan to meet. We met ________ in the street.
| A．by the way | B．by chance | C．on purpose | D．in surprise |