—why, Jack, you look so tired!     —Well, I _____the house and I must finish the work tomorrow.

A. was painting    B. will be painting   C. have painted  D. have been painting

 Thousands of foreigners were______ to  the Shanghai World Expo the day it opened.

A. attended   B. attained   C. attracted   D. attached

 —I haven’t got the reference book yet, but I’ll have a test on the subject next month.

   —Don’t worry. You______ have it by Friday.

A. could     B. shall    C. must    D. may 

 The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.

A. found out     B. pointed out    C. ruled out     D. carried out

 —Do you think their table tennis team will win the first place at the coming Asian Games?

—_________.Ours is much stronger than theirs.

A. Of course     B. It depends    C. Don’t mention it    D. By no means

 The retired man donated most of his savings to the school damaged by the earthquake in Yushu ,________the students to return to their classrooms.    A. enabling     B. having enabled     C. to enable     D. to have enabled

 So far we have done a lot to build a low-carbon economy, but it is________ ideal. We have to work still harder.

A. next to    B. far from     C. out of    D. due to

 —Peter , where did you guys go for the summer vacation?

—We________ busy with our work for months, so we went to the beach to relax ourselves.

A. were   B. have been   C. had been   D. will be

 —I have tried very hard to find a solution to the problem, but in vain.       —why not consult with Frank? You see, _________.

A. great minds  think alike

B. two heads are better than one

C. a bird in the hand is worth two in the bush

D. it’s better to think twice before doing something

 The newly built café, the walls of_______ are painted light green, is really a peaceful place for us, specially after hard work.

A. that     B. it    C. what     D. which