By the year of 2053 there will be 487 million aged people in China, means that one third of the population will be over 60.
It was from May 1 to October 31,2010____________the World Expo 2010 Shanghai will be held, _____________is a great event for the Chinese people.
Janet burst into tears when she failed because she needed to win so _______.
Nowadays the doctors are trying their best to reduce the people’s fear___they would be affected by A-H1N1
___with the present global difficult economic situation, many people don’t dare to invest money in stock market any more.
I can’t help_________if my students are always making any noise in class.