1, I quite like classical music now , although I wasn't keen on it when I was younger
=> I didn't use to drink coffe in the morning when I was young.
2, I seem to have lost internet in my work
=> I used to have lost internet in my work.
3, My brother has his hair cut short when he joined the army
=> My brother used to have long hair.
4, My parents lived in the USA when they were young
=> My parents used to live in the USA when they were young.
5, Jim was my best friend, but we aren't friends any more
=> Jim used to be my best friend.
6, It took Minh 2 hours to paint this picture yesterday 
=> Minh spend 2 hours to paint this picture yesterday.