1) Suddenly he ( remembered) that he had not rung her up in the morning.
2) Did you make your report yesterday? No, I was ill. I had a temperature.
3) He had not opened the window before classes yesterday.
4) What was he doing ten years ago? He was studying at school.
5) He (had left) the house before I (had) time to ask him anything.
6) He (entered) the room, (took) something from the desk and (went) out.
7) When Alison (entered) the house she (saw) that her son (was playing) with a ball which she (had bought) in the shop
8) During the holidays my friend (visited) the village where he (had lived) in his childhood
9) He (told) us that they (had spent) all the
10) When I (came) up to my room, I (saw) Pete who (was standing) at the door of the room