The Great Wall travel _______deep valleys, ________deserts and ________mountains.

Tom is similar ____ height ____ Peter though they are of different ages.

The government work report by Premier Wen conveys a variety of issues, and social justice _____.

A series of ancient Chinese coins are ________ in an exhibition held in Nanjing, where a variety of ancient currencies were unveiled.  

There are solid reasons for China to claim ownership of the Diaoyu Islands, which lie about 200 miles         the eastern coast of our country.      

The shop will be closed for repairs ________ further notice.

I was deeply impressed ________ the speech by the mayor of Shanghai before the final voting for EXPO 2010.

We sometimes have to meet some difficulties, but we should develop a good attitude _______ life.

The world seemed as if it was ___________. In a flash everything was destroyed.

This also keeps the air，soil，water crops________ chemicals.