1. impossible
2. education
3. practicing
4. independent
5. unreliable
6. busiest
7. persuasive
8. culture
.
1. Because of his good behavior, all the teachers love him.
2. Because of his illness, he gave up his job.
3. Because it was so dark, he couldn't read the letter.
4. No long does Mr.David work here.
5. If I had had time, I would have gone shopping.
VI
1 impossible
2 education
3 practice
4 dependent
5 unreliable
6 busiest
7 persuasively
8 cultural
IV
1 Because of his good behavior, all the teachers love him
2 Because of being ill, he gave up his job
3 Because it was dark, he couldn't read the letter
4 No longer does Mr. David work here
5 If I had had time, I would have gone swimming