1. Mother (prepare) some good food before the guests arrived.
had prepared
2. I (wear) this dress when I met you.
was wearing
3. Whenever he wanted to explain something, he (become) terribly nervous.
became
4. After the sun (set) and the night (fall) we went to bed.
trochę nie rozumiem tego zdania, ale : had set, had fallen
5. When I (pass) the house I noticed that someone was trying to break the window.
was passing
6. The doctor (examine) melast night.
examined
7. Our children(go) to the USA before they went to GB.
had gone
8. I (listen) to the radio the whole night yesterday.
was listening
9. When they (hide) the key in the wardrobe?
when did they hide
10. The Vistula (not, freeze) last winter.
didn't freeze
11. John (not, ride) this horse last week.
didn't ride
12. After the doctor (examine) my mother, he told her to stop smoking cigarettes.
had examined
13. I (not, undesratnd) the tv programme last night.
didn't understand
14. Last summer even roses (grow) in this park, but now there is not a single left.
grew