It is said that the gravity on Mars is only aboutof the gravity on earth.

You can ___________ this book and know more about Xinghua.

Nanyang has changed a lot in the past five years. —Yes. You can see lots of new buildings ,flowers and trees on ___side of the street.

Premier Wen Jiabao started his three-day official visit to South Korea, ______ was aimed at increasing cooperation and good neighborliness.

This is the book I bought yesterday , ___________I spent 8 yuan .