听录音，填空

--How long does it take to go to school?

--It takes about thirty ______.

根据上下文填空

--How ______ legs does it have?

--Four.

选择

A: __1___. They mean different things.

B: There is a sign on the grass. What does it mean?

A: It means "__2__".

B: There is a bike on that sign. What does it mean?

A: It means "__3___".

B: There is a sign beside the tree. A man is climbing in the sign. What does it mean?

A: It means "___4__".

B: Thanks a lot. __5___.

A. No climbing 

B. I know a lot about the signs now 

C. No cycling 

D. Keep off the grass 

E. There are a lot of public signs here