Betty is ______ a word puzzle. (    )

A．solving

B．solve

C．working

He is  a bus. ( )

A．drive

B．driveing

C．driving

Is she ________ (listen) tomusic? Yes, she is.

The dog _______. (   )

A．barking

B．is barking

C．bark

用单词的适当形式填空。 
1.I went to the bookstore and _______ (buy)a new book yesterday. 
2.Did you _______ (row) a boat last weekend? 
3.Look, ZhangPeng is_______ (play) football. 
4.Chen Jie is going to make _______ (she)mother a birthday card. 
5.I would like a new pair of _______ (shoe)for my birthday.