A. 写出下列单词的名词形式。
1. invention
2. education
3. congratulation
4. protection
B. 写出下列单词的形容词形式。
1. careful
2. useful
3. helpful
4. forgetful
C. 写出下列单词的副词形式。
1. noisily
2. easily
3. clearly
4. luckily
One possible version :
It's our duty to protect the earth. I always turn off the lights when I leave a room. While I am washing my hair, I usually turn off the shower. Besides, I stop using paper napkins and if I want to shop, I always take my own bags instead of using plastic, bags. I have decided to do more things to protect our earth, such as stopping riding in cars and riding a bike, and recycling books and paper. I think my actions can make a difference !
1. sharks
2.harmful
3.recycling
4.wooden
5.costs
1. turn; into
2.throw; into
3.makes a difference
4. play a part in
5.used to
12345BACBC
1. have been given
2.turning
3.pollution
4.differences
5.suddenly
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