1. The reason this meeting is to discuss the cause of the reduce in price.

2. The decrease profits is due to the bad market.

3. We have seen a fall prices recently.

4. I think your attitude your sister is very bad indeed.

5. I'm afraid I took your coat mistake.

6. The cause his problems is his wife.
on for of in

7. Did you send Simon an invitation the party?

8. His addiction surfing the Internet is a problem.

9. my opinion, she would make a splendid wife.

10. You are too fat. It’s time you were a diet.