The UN Climate Change Conference in Copenhagen was held in a tense ______ due to lack of deep understanding.

According to the situation, they found three different ______ to the problem.

The police say there is a $50,000 _______ for any information that helps them find the killer.

The government has raised the tax on urban building (房产税) with the ______ of controlling the price of buildings.

 People often find themselves caught in such a _____ as “whether…or not…”.

If you want to do international trade successfully, ______ of English is _______. 

Frank made a good_______ _on the first interview, so the manager gave him the job.

 The flood this summer caused serious _______________ to the crops in Northeast China.

 Bill was doing a lot of physical exercise to build up his _______.

I arrive at nine o’clock, teach until twelve thirty and then have a meal; that is my morning       .

Mind your ______; thank your friend when you leave the party.

o make members of a team perform better, the trainer first of all has to know their ______________ and weaknesses.

We look forward to the day when motorcars will be replaced by some less dangerous ____ of transport.

A U.N. peace-keeping _______ was sent to that country and the soldiers would devote all their _______ to their job.

She has waited for the guest for two hours and reached the ________ of her patience.

As a candidate（候选人）, you must try to make a good         on everyone if you want to win the election.

The sentence doesn’t make any             , no matter how you read it.

Three criminals were caught and asked to aid in the           .

The local government are offering a  _________of 10000 dollars for any information helping find the murder of the couple．

You must read the _______ with great care to see if the drug contains PPA before it is taken.