—_____ is it from your home to school?

— It’s about ten kilometers.

A. How far             B. How soon

C. How often          D. How long

All the students in our class promised ____ the school rules.

A. follow     B. follows      C. following   D. to follow

Our English teacher ____ in our school for about 20 years so far.

A. works            B. has worked

C. worked           D. will work

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

How time flies! It’s almost three years ____ we met last time.

A. since            B. before         C. while          D. when