Teaching pronunciation class to a mixed group of learners can ________ a teacher with many challenging problems.

If she doesn’t want to go，nothing you can say will________her.

She ________ the carpet with some very nice curtains in colour.         

Michelle found a job as a high school teacher which ________ spending quite a lot of time with students. 

Bears ________ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.                                

When the group discussion is nearing its end，make sure to ________ it with important points.                                                     

I had hoped to take a holiday this year but I wasn’t able to________.   

If you are in trouble，Mike is always willing to________a hand.           

My uncle hasn’t been able to quit smoking，but at least he has ________.

In much of the animal world，night is the time________for sleep—pure and simple.

According to the law，all foreigners have to________with the local police within two weeks of arrival. 

—The town is so beautiful！I just love it.—Me too.The character of the town is well________.                 

The global warming is more and more serious，for which human beings ________.

He became the ________ of criticism by the readers for his newly­published book.

—Mo Yan was awarded the Nobel Prize for Literature.—He certainly ________ that honor，for his works are so popular.

We tried to ring you back，Bryan，but we think we ________ your number incorrectly.

Will you see to ________ that the luggage is brought back?

Everyone should learn something about first aid，for every second will ________ in an emergency.

He thought this was the first pair of shoes that had fitted him ________.

He didn’t ________ what I read because his mind was on something else.