Read and choose. （读一读，选择正确答语）

1. — How much is it?

    — ______         [ ]

A. It is two yuan.                        

B. They are ten yuan.

2. — Can I help you?  

    — ______        [ ]

A. Yes, please.                      

B. No, it's not.

3. — How much are they?

    — ______         [ ]

A. It's eight yuan.                

B. They're nine yuan.

4. — What time is it?  

    — ______    [ ]

A. It's five o'clock.                        

B. It's rainy.