词形变化练习试卷3

一、1.Word Formation

0. That______(science) began to study Russian in 1999.

1. Please mind your______(behave) in public.

2. The boss showed such______(patient) that he cut short my presentation.

3. The green light is on, and children can cross the road in______(safe).

4. This idiomatic______(express) seems out of style. today. We seldom use it.

5. Their lives were frequently______(threat) by earthquakes and volcanoes.

6. Though he is over 60, my grandfather always looks fresh and______(energy).

7. The young are on their way to make great______(contribute) to society.

8. I"m______(gratitude) to you for all the help you"ve given me.

9. The book written by this Nobel Prize winner is really worth______(read).