帮我解决下面的英语解释英语(同义句)..我是初中的不要用太专业语言

1、There were dinosaurs more than sixty million years ago.
Before more than sixty million years dinosaurs were living.

2、This bowl is made of plastic.
This bowl is plastical.

4、He used a pen to draw the picture.
He drew the picture with a pen.

5、They had a good time on the visit to Paris.
They enjoyed themselves when visiting Paris.

6、Tom's handwriting is better than his brother's.
Tom writes better than his brother.

7、For example,trees can release oxygen into the air.
For instance, trees can give out oxygen into the air.

8、We should prevent factories from producing harmful gases.
We should stop factories producing harmful gases.