1．When it comes to wedding traditions (风俗)，there are differences between the West and the East.
2．At present the local government is taking measures (措施)to reduce the pollution.
3．It is known to all that there are seven continents (洲) on the earth.
4．He likes chatting(聊天)about the things with his friends on the Internet.
5．Passengers checked their baggage(行李)before boarding the plane.
6．A straight line is the shortest distance (距离)between two points.
7．After taking some photos，they stopped at the top of the hill to admire the scenery(风景)．
8．My younger brother will confirm (证实)what I have told you.
