---May I have a cat at home, Dad?---Yes, you can. But you must know how to ____________ it.
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
-----What’s _____matter with you? ------I have_____ flu A. the, / B . /, the C. the, the