选择正确答案

--How much is the skirt?

--_________.

A. It is eight yuan.

B. It is too expensive.

C. It is a blue skirt.

选择

--Is it _________?

--Yes, it is.

-- The sky is so blue. The clouds are white. 

  Let's go __________ .

-- It's a good idea. Let's go.

A. swim     B. to swim　　 C swimming