—What time will Mr Brown be back to China?
—Sorry. I don’t know ______.
| A．when did he go abroad | B．why he is going abroad |
| C．how soon will he be back | D．how long he is going to be there |
We were sad to know that about 30 kids had been killed in Sandy Hook, Newtown, the USA ____ December 14, 2012.
| A．in | B．at | C．on | D．by |
—How do you know that he has bought ___ MP5?
--- He wrote ____ e-mail to me yesterday.
| A．a, an | B．an, an | C．a, the | D．the, a |
---I’ve just heard that the lecture (讲座)to be given by Ma Yun,the Alibaba CEO,has been cancelled(取消).
---Oh , no!_____________________________
| A．It’s wonderful. |
| B．It doesn’t matter. |
| C．I have no idea. |
| D．I was looking forward to that. |
Things are ________ on Mars ________ on Earth because of the different gravity.
| A．much lighter; than that |
| B．much lighter; than those |
| C．not so light; as that |
| D．not so light; as those |
---Be careful. You might fall into the river.
---Thank you. I ________ I ________ so close to it．
| A．didn’t know; am standing |
| B．don’t know; am standing |
| C．didn’t know; was standing |
| D．didn’t know; would standing |