Drivers ____wear seat belts(安全带) while their cars are running on the road.
A. need B. can C. may D. must
I have to be off now. My friends _____outside.
A. wait B. are waiting
C. have waited D. were waiting
A lot of trees ____ around here every year， and we can enjoy fresher air now.
A. are planted B. were planted
C. will planted D. are planting
To protect the environment， supermarkets don’t ____free plastic bags to shoppers.
A. take B. show C. provide D. carry
—I think honesty is the most important thing in doing everything.
—____.
A. All right B. Never mind
C. I think so， too D. Yes， please
If you want to buy this dress， you’d better ____ first to make sure it fits you.
A. pay for it B. take it off
C. tidy it up D. try it on
