As we know,          Potala Palace, a combination of Tibetan construction art and culture, is considered          precious treasure of China.  

A. a; a     B. the; a       C. the; the     D. a; the

— Honey, let's go out for dinner.  

—          I don't have to cook.

A. Forget it!   B. That's great!    C. Why?     D. Go ahead!

A forest is usually found          heavy rainfall is frequent. 

A. in which             B. which             C. where           `D. that

Safety in school has been of great concern because of frequent reports about

accidents          students got injured or killed while in school.      .

A. in which B. for which    C. which    D. when

Some of the wheat is from Canada. What about         ?  

A. another  B. the other            C. others       D. the rest

If you want to be a successful leader, you need to          your confidence first.  

A. add up   B. get up   C. build up D. make up

— Jenny took the 8:00 bus to Guangzhou this morning.   

— Really? He          the 9:00 train. It's much more comfortable and safer to travel by train.

A. could have taken B. should take  C. must have taken  D. can take

They haven't made          known where they are to hold the conference.  

A. this                 B. that              C. it              D. one

I          on my report next week so I won't be able to meet you any day.   

A. am working               B. will be working           

C. was working              D. have been working

Mr. Green stood up in defense of the 16-year-old boy, saying that he was not the one         .   

A. blamed   B. blaming  C. to blame D. to be blamed