_________ the problem of land erosion getting more serious, the government is searching for a way to deal with it.
| A．As | B．With | C．When | D．Because |
______She realized it was too late to go home.
| A．No sooner it grew dark than | B．Hardly did it grow dark that |
| C．It was dark after | D．It was not until dark that |
—When did you first meet Tom?
---On May 2, ____, the first day when I got this city.
| A．or other | B．at least | C．on the whole | D．in a word. |
Those who steal books in the library _____ not be allowed to borrow any again in the future.
| A．shall | B．must | C．may | D．can |
Who would you rather ______ you repair your CD player?
| A．help | B．helped | C．helping | D．to help |
I like swimming，while what my brother enjoys ______.
| A．cooking | B．to cook | C．is cooking | D．cook |