How kind Wang Qiang is ! He always does what he can _____others.
A. help B. helping
C. to help D. helps
— When will Mr.Brown be back to China ?
— Sorry, I don’t know ________.
A. when did he go abroad
B. when he is going abroad
C. how soon will he be back
D. how long he will stay abroad
—I’m not sure ______there are living things on other planets or not .
—Even scientists aren’t sure about it.
A．where B. why C. what D. whether
—I’m very tired these days because of hard work.
—Why not ______music ? It can make you ______
A. listen to ; to relax B. to listen to ; to relax
C. listening to ; relax D. listen to ;relax
—Don’t ______the rubbish everywhere . It’s our duty to protect the environment.
— I’m sorry.I won’t do that again.
A. put away B. throw away
C. take away D. give away
—who is the man over there ? Is it Mr.Wang ?
—No, it _____be him .Mr.Wang is much fatter.
A. can’t B. need
C. mustn’t D. may
