He got well-prepared for the job interview, for he couldn't risk ______ the good opportunity. 

Children above 12 are able to take part in skiing or other activities _______for them.

 ---They are quiet, aren’t they?    ---yes. They are accustomed ____at meals.

________volcanoes now for many years, I am still as enthusiastic about my job as the first day I first______.

When I came in, the children pretended ________ and no one even raised their eyes.

When ______ different cultures, we often pay attention only to the differences without noticing the many similarities. 

He found himself       by a crowd of excited people and       to escape.

The 9th ASEM Summit, held in Laos in November 2012, was aimed at developing Asia-Europe cooperation to         world economic growth.

None of us think it any good _____ a contract with such a dishonest boss.

_______ for several weeks, the city was short of food and clothing.

We walked as fast as we could, _______ to catch the 9:30 train.

—Excuse me sir, where is the room 301?—Just a minute. I’ll get Bob _______ you to your room.

However, at times this balance in nature is disturbed, _______ a number of possibly unforeseen effects.

George Gould, a friend of Carnarvon’s, went to Egypt after hearing of his strange death and visited the tomb, only ______a high fever the next day.

       to playing computer games, he is always absent from school．

Have you checked all the CDs _____ to the mountainous area next week?

It is difficult to imagine his _____ the decision without any consideration.

______ early for his date, Mark spent time reading the newspaper．

The graduation ceremony,_______ at 9 pm yesterday, was followed by a film ．

__________that no one enjoys__________________.