﹣Have you been to the Beijing Expo（北京世园会） in Yanqing？
﹣Yes， it's a of art， gardening， and high technology．（collect）
With the help of the teacher， there has been a great in her spoken English． （improve）
Are you travelling along the Yangtze River next month？
Yes． My brother will join ． （we）
The new bridge， which is sea crossing， has been and ready for us． （complete）
It goes without saying that home is the place in the world． （warm）