If you ____________ stop smoking, you can only expect to have a bad cough.
| A．won’t | B．would not | C．do not | D．can not |
Our government has taken some measures to overcome the lack of electricity, but it may take some time _____ we have enough power．
| A．since | B．after | C．unless | D．before |
All the task ______ ahead of time, they decided to go on holiday for a week.
| A．had been finished | B．were finished |
| C．having been finished | D．been finished |
The accident that happened at an oilfield____ the southeast coast of the U．S．A has caused great damage to the environment.
| A．away | B．from | C．beyond | D．off |
We are at your service. Don’t to turn to us if you have any further problems.
| A．beg | B．hesitate | C．desire | D．seek |
There is ______ is called Mr. Smith in our workshop.
| A．no such man as | B．no such a man as |
| C．no such man | D．no such a man that |