-A number of volunteers_______ willing to teach in China's rural(农村的) areas.
-Yes, the number is getting_______
A. is; bigger and bigger B. are; bigger and bigger
C. is; more and more 
D. are; more and more
Once a year, people take part in "_______ Lights" activity to help save energy.
A. Show off B. Tum off C. Take off D. Put off
-You haven't been to Rome, have you?
-_______. How I wish to go there!
A. No, I haven't B. Yes, I have C. No, I have D. Yes, I haven't
_______ my favourite TV programme, I had my robot_______ the dishes.
A. To watch; wash B. To watch; washed
C. Watching; wash D. Watching; washed
Few
weight-loss pills can help to keep people slim, _______?
A. do they B. dodt they C. can't they D. can they
He will come to understand your efforts sooner or later. It's just a matter of_______.
A. time B. value C. luck D. fact
