—The light in his room is still on．Do you know________?
—In order to prepare for the coming exam．
| A．if he works hard |
| B．why he stays up so late |
| C．why is he so busy |
| D．when he will stop working |
David is new here, so we know_________ about him.
A. nothing B. something C. anything
It is_________ popular way among the young people to chat on the Internet now.
A. a B. an C. the
—What did he say just now?
—He asked me_________,
A. when my sister came back
B. when did my sister come back
C. when will my sister come back
—I'm sorry I forgot to bring your MP4.
—_________ You can bring it here next time.
A. Sounds good B. Thank you C. It doesn't matter
—Do you know Li Na?
—Of course. She's a great tennis player_________ comes from Hubei, China.
A. who B. what C. which