You can make a complaint to the local government ___ you are happy with the way they deal with the matter.
| A．unless | B．if | C．once | D．as |
In the meantime, the question facing business is whether such research is ______ the costs.
| A．worth | B．worth of | C．worthy | D．worthwhile |
Lily would rather I _______ her at the airport yesterday, but I was then busy with a meeting.
| A．would meet | B．met | C．had met | D．have met |
I insisted _______ to see a doctor, but he insisted nothing _______ wrong with him.
| A．on him to go; should be | B．he went; be | C．he go; was | D．he should go; is |
The UN is the international organization which _______ all countries to settle any conflicts between two countries.
| A．lose power over | B．has power over |
| C．seize the power of | D．Come into power of |
As a student we should _______ current affairs?
| A．keep in contact with | B．lose contact with |
| C．bring in contact with | D．stop the contact with |