And so_____people create so______traffic and pollution. 

—Mrs. Wang was sent to teach English in a poor mountain village last year.—She said she would never forget some pleasant      while working there.

He goes to work by bus, but he walks___________ after work.

Confucius was a great         and thinker. His thoughts still influence us.

---- Could you please tell me something about the two _________?---- _____. They are exchange students of No. 1 Middle School.