—I hear your brother will enter Tsinghua University this summer.
—Exactly，he was a born genius.He was able to read and write ________ the age of 4.（ ）
A．inB．onC．atD．of
We should respect others， and we mustn't laugh atpeople in trouble．（ ）
| A． |
make use of |
B． |
make faces with |
| C． |
make fun of |
D． |
make way for |
Zhang Hua is good atmath and physics．（ ）
| A． |
does well in |
B． |
falls behind |
| C． |
is strict with |
D． |
keeps learning |
The boy failed the English mid﹣term examination． Since then， he worked harder．（ ）
| A． |
At the moment |
B． |
In the future |
| C． |
In the past |
D． |
From then on |
Charlie， don't read in the sun！It is badfor your eyes ！（ ）
| A． |
is good for |
B． |
is harmful to |
| C． |
is cruel to |
D． |
is sad for |
Which one of the two products do you want？
，Either is OK．（ ）
| A． |
Of course |
| B． |
I'm sure |
| C． |
Yes， please |
| D． |
I don't mind |