Let's promise to be friends of the earth and not to pollute．（ ）
| A． |
it |
B． |
you |
C． |
us |
D． |
them |
I often go to the bookstore Quancheng Road although it's crowded．（ ）
A．onB．forC．fromD．between
Jill，who that in the white coat？
It's my brother，Joe．（ ）
A．didB．doesC．areD．is
Mike，what club do you want to join？
Well，I want to join the club．I love painting．（ ）
A．chessB．sportsC．artD．English
Xi'an is a very old city．
Sure．It has a history．（ ）
A．bigB．smallC．shortD．long
Dave，where is Mr．Black？
I saw in the classroom ten minutes ago．（ ）
A．heB．himC．sheD．her