Some people are not willing to ____responsibility for the errors they made.

_________ his appearance, he comes from a well-off family.

By the year 2060, the earth _______ twice as many people as it is today.

We found it impossible _______ all the questions within the time given.

He is used to flying by air and on no occasion _______ frightened.

This new style of sports shoes is very popular and it is ____ in all sizes.

The harder I tried, ________ it seemed to solve that math problem.

They regard _______ as their duty to provide the best service for their customers.

Not until that day ________ the importance of good manners in a job interview.

It is difficult for her to make the final decision now, _______ she is in a delicate situation.

_______ to find the proper job, he decided to give up job-hunting in this city.