根据句子意思选出正确的单词。
How long  How old   How far   How much   How many 
1.—________ is it from Beijing to Tianjin?—It's about 125 kilometres.   
2.—________ is your mother?—She is forty years old.   
3.—________ is the Great Wall?—It's about 6000 kilometres.   
4.—________ students are there?—There are forty-­five.   
5.—________ is this book?—It's five yuan.

Circle and correct the wrong one:
How much legs does a dog have?______
A B C

___________ are you? （   ）
- I'm Alice.

A．Where

B．Who

C．What

--- _______ do you play basketball? （   ）
--- At 4:00 in the afternoon.

A．Where

B．What

C．When

—______ did you go yesterday? ( )
—To the park.

A．When

B．How

C．Where