1. We went to Chicago for the first time.
We have never gone to Chicago before.
2. The police arrived too late, so the robber escaped.
By the time the police arrived the robber had escaped.
3. The phone call interruped my breakfast.
I was having my breakfast when the phone call.
4. Sheila went out for the evening, but first she washed her hair.
Before Sheila went out for the evening, she had washed her hair.
5. First Trudy read the book and then she decided that she didn't like it.
After Trudy had read, she decided that she didn't like it.
6. They got to the theatre after the beginning of the play.
When they got to the theatre, the play had begun.
7. Mr. John used to jog a lot.
Mr. John jogged a lot in the past.
8. How long have you had your computer.
When did you buy your computer.
9. In the middle of our dinner, there was a knock at the door.
While we were having our dinner, there was a knock at the door.
10. She didn't get anyone to repair the car for her.
She repaired the car by herself.