China is over 5，000 years old． It has a much__________ history than the USA．（ ）
A．longB．longerC．longest
I'm sorry， mom． I made a mistake in the exam．
_______．Be careful next time．（ ）
| A． |
You'd better not． |
| B． |
It's too terrible． |
| C． |
It doesn't matter． |
The policeman asked the little boy if _______ his home．（ ）
| A． |
he could find |
| B． |
could he find |
| C． |
he can find |
We should do what we can _______ those people when they are in trouble．（ ）
| A． |
to help |
B． |
helped |
C． |
help |
_______ amazing the story is! I want to read it again．（ ）
| A． |
How |
B． |
What |
C． |
What an |
Treasure Island is the most _______ novel _______ I have read．（ ）
| A． |
interesting； which |
| B． |
interesting；that |
| C． |
interested；that |