用所给词适当形式填空。   
1. Tom and Mary ___________ (come) to China next week.
2. Mike _________________ (like) playing basketball.
3. Mary can __________ (read) English book at home.
4. When _________ (be) their birthday?
5. Why___________ (do) Mike like summer?
6. Which season ___________ (do) you like?

Look! There _______ some apples in that tree.  (    )

A．is

B．are

C．be

D．am

I ________ going to the school. （   ）

A．is

B．are

C．am

I ____ Lucy. ( )

A．is

B．am

C．are

The camels________ very tall. (   )

A．are

B．is