If nature does not provide man with the necessary material, it is the laboratory ____ he will turn to for it．
| A．where | B．that | C．which | D．what |
– Have you got any plans for the coming birthday?
– Yes. _____, I’m going to try bungee jumping.
| A．If not | B．If busy | C．If possible | D．If anything |
Once telling him the truth, _____.
| A．he will be nervous all the time |
| B．you will find him nervous all the time |
| C．he will find himself nervous all the time |
| D．everyone will find him nervous all the time |
Willpower is a kind of quality, _____ is _____ it takes to do anything well.
| A．that; which | B．which; what | C．that; that | D．which; which |
Tom is keen _____ surfing the Internet in his spare time.
| A．at | B．on | C．to | D．in |
The students were completely _____ in their reading.
| A．absorbing | B．being absorbed | C．to absorb | D．absorbed |