A study shows that students living in non-smoking dormitories are not likely to        the habit of smoking.

Their parents’ advice is ___________. Which one is NOT right?

They raised a lot of money and ________ a school for the children in the mountain area.

Whenever you are ______, don’t ______.

I was about to walk over to Tom's seat when he ______ and left.

Our English teacher loves us very much and he ________.

President Nixon was deeply_____in the Water Gate problem at that time.

No one knows who the cars damaged in the flood _______.

Tere are a few books on the shelf. But only one of them is _______

It’s reported that Nest Chat allows users to block others when they want to avoid _______.

No one likes a person who _____ himself more than anyone else.

– The lecture will begin at 4 o’clock in the afternoon, right?– Yeah, ____ you get there on time.

The mayor will go to Beijing by train _____ by air.

 – I’m very tired.– We really should stop _____.

I soon found that the work I was doing had already been done, _____, I was wasting my time.

Mary is very clever and      worth teaching , but her brother is not .Look ,he is now      asleep in class .

I’m planning to     two hundred books to the students in poor areas .

The thieves ran away as soon as the alarm _____. 

All his free time is _____ by charity work, but he feels it meaningful. 

If the service is awful, a customer has the right to _____ to the manager.