Twenty years ago, he didn’t ________ English. But he is ________ English now. (   )

A．learnt; learnt

B．learns; learning

C．learn; learning

---What are you doing? (    )
---______.

A．You are drawing pictures.

B．I go home.

C．I’m talking.

Fill in the blanks with proper verbs (用所给动词的适当形式填空)
1. His sister ________ (climb) onto the desk.
2. The pet cannot _________ (drink) the water.
3. Look! The sheep ________________ (eat) leaves. They are hungry.
4. Where _____ ( be ) you, Dad? Mum needs your help.
5. Joe wants to __________(be) a vet. He likes animals. 
6. Let’s ________(go) fishing this Sunday afternoon.

请根据图片回答下面的问题：
What are you doing?

句子中有一个错误，你能找出来并改正吗：
I'm watch TV. ______