This cake is very sweet. You _____ a lot of sugar in it.

A. should put       B. could have put       C. might put      D. must have put

— The room is so dirty. _____ we clean it ?

— Of course.  

A. Will      B. Shall      C. Would       D. Do

I’d rather you did some housework when you are free ,but you _________.

         A．didn’t          B．shouldn’t C．weren’t    D．don’t

The officials soon realized that, __________, things would get worse.

A. unless dealt with it properly            B. if not properly dealing with it

C. unless properly dealt with               D. if dealt not properly with

If you _____ stop smoking , you can only expect to have a bad cough .

A. won't       B. would not      C. do not       D. can not

The research is so designed that once _____ nothing can be done to change it.?

　A. begins  B. having begun  C. beginning  D. begun

My friend Mary is _____ beautiful girl and _____ girl everyone likes to work with.?

A. a, a        B. a, the       C. the, a          D. the, the?

I met several people there, two of _____ being foreigners.?

　　A. whom　  B. them　  C. who　  D. which?

The teacher suggested that we should do _____ what he did yesterday.

A. as   B. like    C. about    D. than

I use to play tennis a lot but I don‘t play very often now.