用所给词的适当形式填空。 
1. I ________ ill today. (be)
2. I’ll ______ (help) you with your English.
3. Bob _______(have) a cough today.  
4. She ______(have) a fever yesterday.
5. Can you ______ (go)and fly a kite with me?
6. Sorry, I can’t ______(go) to park with you.

There ________a pencil and two pens in my pencils -case. (   )

A．is

B．be

C．are

D．am

--What color______ it? （    ）
--Yellow.

A．are

B．is

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.

Next Sunday my father ________cook Chinese food for me. (   )

A．am going to

B．is going to

C．are going to