--Are you going to buy a new camera?
--Yes. But there are so many cameras that I can't decide__
A. how to use B. where to sell C. which to buy
--I hear that Tom's sister is a teacher here.
--Yes, the girl is standing under the tree is his sister.
A. who B. whom C. whose
--Is Peter a new member in your art club?
--No. He _____ our club for two years.
A. joins B. has joined C. has been in
--There goes the bell.
--It's time for class. Let's stop .
A. talk B. talking C. to talk
--Don't ______ too late, or you will feel tired in class.
--I won't, Dad. Good night !
A. stay up B. get up C. wake up
--What a clean kitchen!
--Yes, and it _____ by my mother every Saturday.
A. cleans B. is cleaned C. has cleaned
