What are you _____?(   )

A．do

B．does

C．doing

找出下列句中的错误并改正。
1. He is tell a story.
______________________________
2. He is playing a guitar.
______________________________
3. I is singing a song.
______________________________
4. My mother is wash the clothes.
______________________________

—What are you _______? (   ) 
—I’m eating an apple.

A．doing

B．do

C．does

Read and write.
send    put    America    one    get
1. These ______are from China.
2. I’m ______a book into my bag.
3. We have ______some new chairs in the classroom.
4. He sometimes ______me pictures.
5. Here’s a book about ______people.

用所给词的正确形式填空。
【小题1】We should stop _________ (throw) rubbish into rivers.
【小题2】In the past, the Earth _________ (be) clean and beautiful.
【小题3】My brother is __________ (plant) trees in the backyard.
【小题4】The Earth __________(get) sick now.
【小题5】We shouldn’t __________ (cut) down so many trees.