We are ice-skating _____ Sunday _____ 10 A.M.
A. with, of B. on, at
These clothes ____ only $10. They still have $20 _____.
A. cost, to spend B. spend, to cost
---Oh, no! The printer was ________.
---Don’t worry. You didn’t _______ it. Check again.
A. break, broken B. broken, break
I’ll meet you _____ _____ hour.
A. on a B. in an
Remember you shouldn’t play computer games ________ doing your homework.
A. before B. after