Scientists are doing ______________ to test the effectiveness of the new drug.

Food must be heated to a high temperature to kill harmful _____________.

The kidney plays a _____________ role in the removal of waste products from the blood.

If you're going to walk long distances, you need ____________walking boots.

An Olympic silver medal is a remarkable _____________ for such a young boy.

On television she was so beautiful and ___________, and here she looked so tired and almost old.

He always feels___________ when his friends talk about sports. He can’t even say a word to take part in their conversations.

The statistics ___________ a change in people's spending habits.

Somehow she managed to _____________the band's new album before it came out.

Computerization should _________ us to cut production costs by half.

Don’t worry. The burn will ________ in a couple of weeks, but it will probably leave a scar.

The people in the movie theater began to________ and run for the exits when they smelled the smoke.

I have a sore throat, and it is hard to ________ any food.

If your mind goes ________, you suddenly can’t think of anything to say.

The campaign has certainly succeeded in raising public ________ of the issue.

He has a ________ job. He always goes to work very early and comes home very late. He feels tired all the time.

The accident left him ________ from his waist down. Now he has to spend his life in a wheelchair.

You can't expect to ________ from your painting. You are not paid enough money to live on it.

Max is taking his music exam on Tuesday. I’m ________ for him!

I don’t understand anything at all!The questions of this exercise are so ________.

Thanks for being there when I broke up with my boyfriend – it’s so nice to have ________.