1. Barbara stayed with an Italian family while she was in Italy.
2. Mert used not to smoke at all when he was at university.
3. Chocolate was one of my favorite things when I was a young girl.
4. Mert doesn't like traveling by train anymore.
5. Mr. Michel doesn't travel as much as he used to.

When Barbara was in Italy, she stayed with an Italian family.

1. • Barbara used to stay with an Italian family when she was in Italy.

2. Mert never smoked at all when he was at the university but now he smokes ten cigarettes a day.

   • Mert didn't use to smoke at all when he was at the university.

3. When I was a young girl, chocolate was one of my favorites.

   • Chocolate used to be one of my favorites when I was a young girl.

4. I don't like travelling by train now. → I used

   • I used to like travelling by train.

5. Mr. Michel grew tulips but he doesn't any more.

   • Mr. Michel used to grow tulips.