You don’t need to make fancy foods to impress guests—it is something simple but good _____ will do.   

Li Ning was able to set up a school for gymnasts in 1991, ______ he has continued to help young people to achieve their sporting ambitions.

It was not until this year _____ scientists managed to make a cat and a goldfish disappear from sight using an invisibility cloak(斗篷)

It is not always easy for the general public to see _____use a new invention can be of to their daily life.

You should be more confident in______ situation is challenging you.

—I heard Tom was badly injured in the football match.
—     , let’s go and see him.

The boss refused to sell the car for        he thought was not satisfactory.

Once you do it,      you will feel that it comes easy.

It was the belief _____ Alex Haley could find his “root” in Africa______ made him decide to go to Gambia.

When      for his views about his teaching job, Philip said he found it very interesting and rewarding.