--- How long has your mother ______ Beijing?
--- About two weeks. But she will come back tomorrow.
| A．been to | B．been in | C．gone in | D．gone in |
Some organizations have been__________ to help the poor students in the western areas of China.
| A．given up | B．set up | C．picked up | D．put up |
__________ earthquake happened in Ya’an Sichuan, on the morning of April 20.
| A．An | B．A | C．The | D．/ |
---Will you join us to play basketball on Saturday afternoon?
---________, but I promised to go swimming with Eric.
| A．Never mind | B．Many thanks |
| C．Take it easy | D．With pleasure |
He was just falling asleep _____ there was a loud knock on the door.
| A．while | B．when | C．then | D．until |
---Fifty dollars for such a T-shirt! You _______ be joking!
---I’m serious．It’s made of silk.
| A．must | B．need | C．may | D．can |