. ---I am green at everything.
---Don’t worry. _____ you get older, you get more experience.
A .When B. Till C. As D While
After the equipment was introduced; they produced_______ machines this year as the year before.
| A．as twice many | B．as many twice |
| C．twice as many | D．twice many as |
College students should be encouraged to use _____ Internet as _____ resource when planning a term paper.
| A．the; a | B．/; the |
| C．the; the | D．a; a |
There is n’t any difference between the two.I really don’t know __________.
Ａ.what to choose B. which to choose
C. to choose what D. to choose which
I have been told that the pen as well as the books __________ him.
| A．belongs to | B．is belonged to |
| C．are belonged to | D．belong to |
It’s surprising that your brother __________ some knowledge of the computer just by watching others working on it.
| A．picked up | B．packed up |
| C．put up | D．made up |