rewrite: 1 . Because he got up early , he wasn't late for the first train => because of 2. the plane couldn't take off because the weather was bad => because of 3. she stay at home because her mother was sick => because of 4. all the teachers love him because his conduct is good => because of 5. we couldn't study because it was noisy => because of 6. Mary can't sleep because there was the noise => because of 7 he left school because his life was hard => because of 8. because of driving too fast, he caused a serious accident => because

1 . Because he got up early , he wasn't late for the first train

=> because of getting up early, he wasn't late for the first train....

2. the plane couldn't take off because the weather was bad

=> because of the bad weather,the plane couldn't take off.

3. she stay at home because her mother was sick

=> because of her mother's sickness,she stay at home.

4. all the teachers love him because his conduct is good

=> because of his good conduct, all the teachers love him.

5. we couldn't study because it was noisy

=> because of of the noise,we couldn't study.

6. Mary can't sleep because there was the noise

=> because of of the noise, Mary can't sleep.

7 he left school because his life was hard

=> because of his hard life,he left school.

8. because of driving too fast, he caused a serious accident

=> because he drove too fast,he caused a serious accident.