This novel can make you laugh and cry at _______ same time.
I _____ ask my father to give up smoking. It’s bad for his lungs.A. must B. need C. shouldn’t
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