. Scientists are making every _________ to find a new cure to cancer.
| A．effect | B．affect | C．effort | D．afford |
Many of the only children are so accustomed tothat they react violently when they hear something different.
| A．having praised | B．praised |
| C．praising | D．being praised |
As many as 20 dishes are provided in the dining hall today, and you are free to choosesuits you best.
| A．whatever | B．whenever |
| C．whichever | D．wherever |
It is not your grades but the attitude to your course matters.
| A．that | B．one | C．what | D．it |
-Hi, Lucy! What's the schedule for tomorrow?
-Let me check. Youan appointment with Thomas at three o'clock.
| A．were having | B．have |
| C．had | D．have had |
There are eight tips in Dr. Roger's lecture on sleep, and one of them is:
to bed early unless you think it is necessary.
| A．doesn't go | B．not to go |
| C．don't go | D．not going |