Rewrite the following sentences, using “USED TO” or “DIDN’T USED TO”

I, Rewrite the following sentences, using “USED TO” or “DIDN’T USED TO”
 

8. The old sailro usually drank lots of whisky.

9. Mr. Smith usually smoked cigars.

10. Bill usually worked very hard.

11. I had a lot of money but I lost it all when my business failed.

12. I quite like classical music now, although I wasn't keen on it when I was younger.

13. I seem to have lost interest in my work.

14.  My brother had his hair cut short when he joined the army.

15.  Dennis gave up smoking three years ago.

16. My parents lived in the USA when they were young.