20.What do I have to do I want to be thinner.
A. if B. since C. while D. until
19.I’m happy to know you are well and in good .
A. health B. healthy C. body D. unhealthy
18.I have some news for you, Tom can’t come tomorrow.
A. disappointed B. disappointing C. interested D. interesting
17.What about more trees to keep the air clean.
A. to plant B. plant C. planting D. planted
16.Mary on the phone when her friend went into her room.
A. talked B. was talking C. talk D. is talking
15.The two women were pleased to see each other that they talked on and on happily in the room.
A. such B. so C. to D. very
14.Do you like playing basketball or playing piano?
A. the ;the B. the ;/ C. / ; the D./ ; /
13.Our teacher told us that the earth _______ around the son.
A. goes B. will go C. went D. go
12.Be quick. The plane in two minutes.
A. leave B. left C. will leave D. leaves
11.I think children will study at home on computers twenty years.
A.for B.in C.after D.on