用括号里单词的适当形式填空
1. When I am ________ (do) my homework, my mother is ________ (cook).
2. He has to _________ (travel) the country in search of work.
3. How __________ (do) seeds travel?
Seeds _________ (travel) in many ways.
4. What _____ (be) they talking about?
They are _________ (talk) about the seeds of plants.

根据汉语提示完成对话：
—What are you doing?
—I’m ________________ (发送电子邮件) to my friend.

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.

The shop assistant is ________ a dress to a lady. (   )

A．buying

B．making

C．selling

D．getting

按照例句写出相应的形式。
例：clean the room I am cleaning the room.
1. stand there
_______________________
2. talk about the picture   
_______________________
3. look at the bird   
_______________________