Look at the blind man. He __________ the road, Let's help him. （    ）

A．is crossing

B．is cross

C．crosses

Read and choose the wrong one:
I am doingmy homework yesterday. （_____）
A  B     C

The dog _______. (   )

A．barking

B．is barking

C．bark

用所给词的适当形式填空。
ring    cry    but   come   watch
1. My father is working on the computer, but my brother starts to ________.
2. My mother is cooking dinner, but the bell ________.
3. “Come in，please!” I say. My friend Lucy ________ in.
4. Mr Smart is reading a book and Mrs Smart ________ TV.
5. Lin Tao is doing his homework, ________ the phone rings.

Amy is __________（make）a cake.