We can see monuments here and there. Those who have made great          to human beings and society will never be forgotten.

      A. advance            B. progress                  C. contribution             D. achievement

Recently, there ________ a boom in population mobility, and according to the survey in 2000, 17 percent of the population _______ every year.

       A. is; moves          B. has been; moves             C. is; move                   D. has been; move

Anyone who has spent time with children          the difference in the way boys and girls           similar situations.

       A．aware of; respond to                           B．is aware of; respond to

       C．aware; responding                               D．is aware of; respond

If the safety protections against the accidents         , the miners         a chance to survive then.

       A．were taken; would have                        B．had been taken; didn’t have

       C．had been taken; would have had            D．were taken; would have

Whether age is happy or unpleasant depends less on money or on health than         on your ability to have fun.

       A. it is                   B. it was                      C. it depends                D. it does

Countless people in developing countries no longer suffer malnutrition. ________, poverty remains a problem worldwide.

       A. While                B. Nevertheless             C. Besides                    D. In addition

Come to me early tomorrow morning. If I _________, wake me up.

     A. sleep                B. will be sleeping        C. was still sleeping       D. am still sleeping

China's population is expected to increase to about 1.5 billion in 2040, ________it will start to decline slowly.

     A. where              B. after which              C. on which                 D. which

The traffic problems we are looking forward to seeing _____ should have attracted the government's attention.

A. solving             B. solve                       C. to solve                   D. solved

Professor Wooden makes roughly $1,000 every week, and 60 percent of _________ is spent on books

     A. which              B. them                       C. it                                   D. what