V. Give the correct form of the words in brackets.

1. The____of computer opened a new era in the history of mandkind INVENT

2. With breathing equipment, man can swim____underwater for a long time. FREE

3. At recess, the ______ students often play basketball, but they never ENERGY

have time to play the whole game.

4. I’m _________________ to give you a ride to the station. PLEASE

5. It is _______to have a toothache. PAIN

6. We are having the _______holiday of our life. GOOD

7. The_______must be under 25 years old in this competition. CONTEST