The potato chips have been in the paper bag for half an hour. They are not _____ any more.
| A．crispy | B．sweet | C．salty | D．sour |
–______ 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 |
Her father often _______ to work on foot. But yesterday he ________ a bike.
| A．goes, rides | B．goes, rode | C．went, rides | D．went, rode |