Even if the treatment ________，there’s still no magic pill for patients in the late stage of AIDS.
| A．does | B．uses |
| C．works | D．helps |
Nick, it's good for you to read some books（）China before you start your trip there.
| A． | in | B． | for | C． | of | D． | on |
To get a better grade, you should __________the notes again before the test.
| A．go over | B．get over | C．turn over | D．take over |
As it reported, it is 100 years _____________Qinghua University was founded.
| A．when | B．before | C．after | D．since |
-How could you be so rude as to walk in here in the middle of my class?
-
| A． | Nothing much | B． | Nothing serious | C． | Never again | D． | Never mind |
Frank insisted that he was not asleep I had great difficulty in waking him up.
| A．whether | B．although | C．for | D．so |