1-He had studied French before he entered the university.
2-Lanny said that he had got his education in Cape Town.
3-The boy wanted to act the main part in the play because he had organized the theatre.
4-Lanny didn't know who had attacked him in the darkness.
5-The girl was glad that she had found a seat near the window.
6-Suddenly he remembered that he had not rung her up in the morning.
7-By the time the train reached the city, he had made friends with many passengers.
8-When his uncle had left, he hurried to the station to book a ticket.
9-She thought that Gert and Lanny had quarrelled.
10-By the time we came to see him, he had returned.
11-During the holidays my friend visited the village where he had lived in his childhood.
12-When they entered the hall, the performance had already begun.
13-When I came home, my mother told me that she had received a letter from grandfather.
14-Where had you worked before you entered the institute?
15-By two o'clock the teacher had examined all the students.
16-On my way to school I remembered that I had left my report at home.
17-All my friends were glad to hear that I had passed all the examinations successfully.
18-Poor Oliver lay unconscious on the spot where Sikes had left him.
19-He opened his eyes, looked around and tried to remember what had happened to him.
20-All the passengers saw at once that the old man had travelled a great deal in his life.
2) built
3) would be
4) had
5) would live