—— The light is still on in his room. Do you know ?
—— In order to practise for the English singing contest.
| A．if he works hard | B． who he is studying with |
| C．why he is so busy | D．when he will stop working |
— I _____ 5,000 yuan on this iPhone.
— Wow, so much! I can’t afford it.
A. spent B. paid C. cost
— _____ Mary _____ Alice has joined the music club because they have no time.— It’s a pity!
A. Both…and B. Either…or C. Neither…nor
— Where is Ben?— He _____ to the teachers’ office. He will be back soon.
A. go B. has gone C. has been
— ______ clever the girl is！ — So she is.
A. How B. What C. What a
— Mom, must I finish my homework now?
— No, you ______. You may have supper first.
A. mustn’t B. needn’t C. can’t