—Sorry, I made the same mistake again, Sir．
—________．Practice more and you will be better．
A.Certainly not B.Never mind C.Not at all D.Don't mention it
I wonder ________ at 9:00 last night? You didn't answer my telephone．
A.what were you doing B.what did you do
C.what you were doing D.what you are doing
—Our hometown is getting more and more beautiful．
—Every day some villagers clean the road ________．
A.careful B.care C.more careful D.carefully
—I think teenagers should be allowed to get part-time jobs in their free time．
—________, social practice is also important．
A.I agree with you B.I don't think so C.No problem D.Yes, please．
—Could you please lend your bike to me today? Sam!
—________．I'm not using it．
A.Never mind B.I have no idea C.Sure, go ahead D.I'm afraid not
Kunming is a good place to take vacations．Every year ________ visitors come here．
A.thousand of B.thousands C.nine thousands D.thousands of
