Put the correct form of the words in brackets

III. Put the correct form of the words in brackets.
1. Environmentalists fight (energy)
2. Clair is very (society) ......
4. Blood (donate).
5. Bell (success)......
6. Ha Long Bay was (recognition)
against cutting down forests to protect wildlife.
She knows a lot of people.
are considered heroes for their charitable acts.
demonstrated his invention.
7. Wind power is another type of (renew).
8. Tom is the most (bore)
9. It is hard to (class)
...by UNESCO
as a World Heritage Sit
energy source.
person I've ever met.
these kinds of books.