______healthy，you should take more exercise and eat more healthily .
| A．Keep | B．To keep | C．Keepng | D．Kept |
–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 |