Would you like to go hiking with usthis Sunday —Sure, _______ I am busy.

Sam becomes the top student because heis very clever.—_______. Without the help of hishardworking teachers, he can’t make it at all.

When ______ the 24th Winter Olympic Games ______ in Beijing– In 2022.

It seems to some experts that 56．com, youku．com and tudou．com _____ 90% of the video market in this area．

Where are the guests to be fromtomorrow—Many an American boy and many a Britishgirl as well as the teachers to he present.