—Is Bob still teaching?—I’m afraid not. He is said    the school as he has become a businessman.

So far nobody has claimed the money       in the library.

It’s said that Singapore is really a beautiful country. I’m considering _______ it.    

Taobao.com has begun selling tickets online for international flights, ______ to cut the market share of Ctrip.com and other competitors.

Sichuan Province, ________ in southwest China and ________ an area of 485,000 kilometers with the largest population in China, is one of the largest and most inaccessible provinces in China.