Ответ:
- The children had fallen asleep before dinner was served.
- We had learnt English well by the time we left school.
- The concert had begun by the time they came.
- I had finished my report when you called me.
- We were upset to find that we had missed the train.
- By 5 o'clock he had done his homework and could go to play football with the boys.
- By the end of June they had passed all their exams.
- After she had read the novel, she gave it to me.
- She had studied medicine for six years before she became a doctor.
- He had sent the letter by e-mail before you came.
Ответ: смотри выше
Ты отлично справился с этим заданием! Продолжай в том же духе, и у тебя все получится!