1) By two o'clock the teacher had examined all the students.

2) On my way to school I remembered that I had left my report at home.

3) All my friends were glad to hear that I had passed all the examinations successfully.

4) Poor Oliver lay unconscious on the spot where Sikes had left him.

5) He opened his eyes, looked around and tried to remember what had happened to him.

6) All the passengers saw at once is that the old man had traveled a great deal in his life.

7) By the time we came to see him he had returned home.

8) During the holidays my friend visited the village where he had lived in his childhood.

9) When they entered the hall the performance had already begun.

10) When I came home my mother told me, that she had received a letter from grandfather.

11) Where had you worked before you entered the institute?

12) ??? Там, видимо, ошибка какая-то.