选词填空。
am is are
（1）There ____ an apple in the bag.
（2）I ____ a student.
（3）There ____ five books on the desk.
（4）There ____ a Chinatown in New York.
（5）There ____ many birds in the tree.
( ) The Whites ________ many places of interest since they came to China.
A. have visitedB. will visitC. visited
( )—What did you do last night?
—I did my homework and ________ storybooks.
A. reads B. read C. will read
( )— What is Jenny doing?
—She______.
A. swims B. is going to swim C. is swimming
( ) He has many________.
A. balls B. ball C. a ball
( ) In winter, the weather is________.
A. hot B. cold C. warm