Part two: language Knowledge 
Section A (15 points)Directions: Beneath each of the following sentences there are 4 choices marked A, B, C and D. Choose the one answer that best completes the sentence.
21. --- Time passes quickly, doesn’t it?
--- Yes. It will be only two months_______we take the 2010 College Entrance Examination.
A．since B．after C．before D．When
With some books badly needed _____, she hurried to the bookstore.
| A．buying | B．bought |
| C．to buy | D．buy |
I was blessed with a happy childhood, _____ that most people would want to have.
| A．which | B．it | C．one | D．that |
To improve the quality of our products, we asked for suggestions _____ had used the products.
| A．who | B．whoever |
| C．whichever | D．which |
, I can’t express myself in words.
| A．So long as I am fond of her |
| B．Unless I am fond of her |
| C．Much as I am fond of her |
| D．As I am fond of her very much |
When asked to explain ____ made her remain so young , she began to tell us her secret.
| A．what it was that | B．that what was it |
| C．it was what that | D．what was it that |