-______ you swim?  ( )  
- Yes, I can.

A．can

B．Can

C．Do

Choose, think and write.
be going to/ should
1. You ______ clean your room now.
2. They ______ visit the museum tomorrow.
3. She ______ have a swim next Sunday.
4. You ______ be late again.
5. Children ______ eat too many hamburgers.

—Must we save paper? (   )  
—I'm afraid we .

A．need

B．needn't

C．must

D．mustn't

Read and choose.

A．couldn’t

B．can’t

C．can

1. The blind girl ______ see.
2. The boy ______ play basketball then.
3. We ______ stand on our hands.

用be 动词，have, has,can ,can't 填空
1. I _______Nancy. I ______some biscuits. They _____stars.
2. She ______a small cat.
3. ---I ______find my gloves. Where ______my gloves?
---They _____on the table.
4. ---Danny, how old ____you?
---I ____nine years old.
5. Look at the little dog. It ____white. It ______four legs.