Many experts stick to the view _____ teacher development is _____ the key to quality education lies.

Mrs. Obama introduced the Let’s Move _______ yesterday. Its goal is to reduce children obesity(肥胖) today and in the future.

—He was downloading reading materials from a website when the computer crashed.—_______ that he looked a little upset.

I would like to buy a house which has a(n) ____over the sea.

He presents a new ________ to learning a foreign language, which I think is of great value.

John worked hard at his lessons and gained ________to a famous university last year.

There are 40 students in our class，who come from a  ________of backgrounds.

According to the recent research, heavy coffee drinking and heart attack is not necessarily      and effect

Some people always take seriously the ______ of the complete globe end in the near future. 

Nowadays, an increasing number of people have ___________ to the information they need through the Internet.

There were so many cars held up by the heavy rain on the road that we had no        but to wait.

The conference has been held to discuss the ________of global warming on people’s lives all over the world.

On the top of Mount Tai，you can get a wonderful________of the sunrise.

________ is very important in doing any scientific work.

Lina didn’t get there on time because of the bad weather, what’s more, her car was in poor          .

After the disaster, the first thing the local government did was to provide _____for the homeless families. 

Several leading _____ resigned from the party yesterday.

Considering the injuries he’s had there can be little          of him winning the race.

Giving children pocket money as a gift during the Spring Festival is a common _______ in China.

When a difficulty is beyond my _____, I turn to my classmates or teachers for help.