We should ________ quiet in class.A.be B.to be C.being
--- ___ they taking a picture? --- Yes, they are. A. Am B. Is C. Are
Can I speak ___John? A. for B to C. on
Kate ____ playing chess. A. am B is C. are
_____season do you like best? A. Which B. What C. How
What do you do ____the weekend? A. on B. in C. at