It’s cold outside, you’d better not _____ out.
A. to go B. go C. going
Why _______ climb mountains this weekend?
A. don’t B. didn’t C. not
There _______ a school sports meet next weekend.
A. is going to have B. is C. is going to be
As we know, water is very important _______ us.
A. of B. to C. on
Would you mind _____ the room?
A. clean B. cleaning C. to clean
-----What’s _____matter with you?
------I have_____ flu
A. the, / B . /, the C. the, the
