There is ______ wrong with this computer. It doesn’t work well.
A. something B. anything C. everything D. nothing
–Which color do you like ______, blue or green? –Blue.
A. good B. better C. best D. the best
–______ schoolbag is this? –I guess it’s Lily’s.
A. What B. Who C. Whose D. Which
The reading room _____ very quiet. I enjoy reading books there.
A. am B. is C. are D. be
Some volunteers from Beijing arrived in Shanghai _____ April 29 to work for the World Expo.
A. on B. at C. of D. to
Tom and Mike are good friends. _____ often help each others.
A. They B. Them C. Their D. Theirs