She eats three _______ every day .
It’s cold outside, you’d better not _____ out. A. to goB. 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. isC. is going to be
As we know, water is very important _______ us. A. of B. to C. on
Would you mind _____ the room? A. cleanB. cleaning C. to clean