[     ]

A. sing, sing
B. singing, sing
C. sing, singing

[     ]

A. doing, drink
B. do, drink
C. doing, drinking

[     ]

A. swims, boat
B. swiming, boating
C. swimming, boating

1. The children is playing football on the grass.  __________________
2. Listen! Who is read English loudly?  __________________
3. What are you doing?  You're writing a letter.  __________________
4. Sandy is siting under the tree.  __________________
5. My brothers are haveing lunch at home now.  __________________

1. Look! The pandas are ________________ (睡觉). The monkeys are ________________ (荡秋千).
    They are cute.
2. Look! They ________________ (野餐) together. They are very ________________ (高兴).
3. Look at the children. The boys are ________________ (做实验) and the girls are ________________
   (收集树叶)
4. Chen Jie and Mike are ________________ (玩游戏) in the garden. They are ________________ (捉蝴蝶).
5. In the evening, my mother is ________________ (做饭) and my father is ________________ (扫地).
    They are busy now.

[     ]

A. went fishing
B. take pictures
C. am reading books

[     ]

A. going, go
B. going, going
C. go, go

[     ]

A. look
B. looking
C. looks

What are you doing?
1. I am ____________. 
2. I am ____________ a picture. 
3. I am ____________ a book.