Computers are of great        to the development of science and
technology.

It’s the ________ in Britain for a bride to throw her flowers to the wedding guests.

The scientists were trying to look for all possible _______ as to where this species came from.

I wrote him a letter to show my _____ of his thoughtfulness.

“Tommy, run! Be quick! The house is on fire!” the mother shouted, with ________ clearly in her voice.

The school advisers help you talk through your problems but they don’t give you any direct ______.

In dealing with public relations，we should make every effort to prevent the_______in personality.

You should read the ____________ in the car repair manual (手册) carefully before you start to work on it.

Don’t lend them the car --- they are taking ______ of you.

At the class meeting the students discussed three different _______ to the study of English.