Many Chinese have lived abroad for years, but they still  _____ the traditional customs.

In order to meet the demands they had to________production.

After he retired from office，Royers________painting for a while，but soon lost interest.

Don’t always_______your own failure_______others.Sometimes you yourself________.

Jane’s pale face suggested that she______ill，and her parents suggested that she________a medical examination.

After so many hardships, the scientist             his motherland at last.

Some forms of algae have             to growing on ice.

She has             a lot of things, so she knows exactly how to deal with such a person.

This is a very serious matter and the Chinese Academy of Sciences is trying to             public awareness about it.

Wherever such an area is located, it will be immediately ______ by the enemy if armed forces are lacking.

In order to ______ his muscle, Mike goes to the gym regularly to do exercise.

He trusts you. Maybe you are able to        him to give up that foolish idea. 

We’ll go out for a walk after supper. Will you        us?

His eyes were          Della, and there was        in them that she could not       .

I need the money badly now and I have to       my car though I’m not at all willing to do so.

There are also strange records, like the Englishman who        a small car       159.6 kilogrammes         for thirty three seconds!

From facts, scientists have        that more energy is being absorbed from the sun, throwing the earth’s energy “out of balance”.

 To get a better grade, you should ______ the notes again before the test.

You cannot be more careful when crossing the street, or you may ___ by cars.   

--- Can you tell me how many study groups there are in a class?              --- Generally speaking, a class often ___ 8 study groups, each with 7 group members.