The children helped to carry their mother’s       from the shops.

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

People who are infected with HIV are often looked down upon because social _____ against the disease runs so deep.

Recently CCTV Station has taken great pains to make a program that reviews the important_____0f 2006．

 Due to the unreasonable individual income ­_______, the gap between the rich and poor has become an outstanding issue.