George applied for the position three times ______ he finally got it.
| A．before | B．until | C．when | D．after |
The long-lasting meeting, filled with arguments and quarrels, ended in disorder, ______ no conclusion.
| A．reached | B．to reach | C．reaching | D．would reach |
Time should be made good use ______ out lessons well.
| A．of learning | B．to learn | C．to learning | D．of to learn |
.Which do you enjoy ______ your weekend, fishing or staying at home?
| A．spending | B．to spend | C．being spent | D．spend |
We should prevent pollution ______ happily.
| A．from living | B．to live | C．from being lived | D．to living |
.It is sleeping late in the morning that ______ being late for work.
| A．devotes to | B．sticks to | C．sees to | D．leads to |