用所给动词的适当形式填空。
1. The little boy wants _________(eat) a big apple now. So please_______ (bring) one to him. 
2. Tom often_________(go) to school at 7:00. Now, he________   (take) a taxi.
3. --- ______She_____( write) to her friends on Sundays?
---Yes, now she________  (write) a letter now.  
4. ---Where _______Mr. Black usually_________(run)?
---In the park. Now, he__________ (run) in the neighborhood.

Peter is ______ green shorts. (   )

A．wear

B．wearing

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.
______________________________

He’s ______. (   )

A．fishing

B．go fishing

C．fished

Amy and Lily ________ bikes. (  )

A．riding

B．is riding

C．are riding