The young generation must contribute to ____________ the country. 
A. building of 
B. the building 
C. the building of 
D. build

 I don’t think he will join us, ___________?
A. doesn’t he 
B. won’t he 
C. will he 
D. don’t I

 Nam Cao devoted most of his time __________
A. to having written 
B. to write 
C. to writing 
D. to have written

The four-storey house __________ on that hill is still new.
A. be built 
B. building 
C. built 
D. being building

Most of the courses at the banquet were completely consumed, but there _____ food still remaining.
A. were few 
B. was little 
C. were a few 
D. was a little

 “What’s your proposal?” “I propose that the meeting __________”
A. is postponing 
B. be postponed 
C. to be postponed 
D. postpones

 __________ young, chimpanzees are easily trained.
A. When are 
B. When 
C. They are 
D. When they

Andrew couldn’t __________ himself laughing at the expression on Maggie’s face.
A. help 
B. stop 
C. escape 
D. avoid

Of course I didn’t break it ____________ purpose- it was an accident!
A. by 
B. with 
C. from 
D. on
 

Before he left on his trip to America, the young man promised his parents he _____them regularly.
A. is writing 
B. will write 
C. should write 
D. would write