[单项选择]I think we need to see an investment, ________ before we make an expensive mistake.


A. guide
B. entrepreneur
C. engagement
D. assessor

[单项选择]I think we need to see an investment, ________ before we make an expensive mistake.


A. guide
B. entrepreneur
C. engagement
D. assessor

[单项选择]I think we need to see an investment ______ before we make an expensive mistake.

[单项选择]If we learn to see what we have to offer one another, then we can ______ our misunderstandings and work towards peace.
A. set out
B. set aside
C. set off
D. set down

[单项选择]______ we need air and water, we need criticism and self criticism.
A. Even though
B. So long as
C. Just as
D. Now that

[单项选择]We need one hundred more signatures before we take the ______ to the governor.
A. plea
B. petition
C. patent
D. claim

[单项选择]

Passage Two
When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.
People who are near-sighted can only see things that are very close to their eyes.’ Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly.
People who are far-sighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts (白内障). Long ag
A. only when we cannot see perfectly
B. only when we can see well
C. even if we can see well
D. only when we realize how important our eyes are