1.She had been there for 3 hours by the time the mother came back.
2.Sasha was in time. He had come by morning train.
3.If you don`t take a taxi you will be late.
4.By the time you get to the cinema it will have been already 8 o`clock.
5.I hope you start to learn the dialogue.
6.My bus has left by the time you come.
Ex6
1.were you doing, I was playing
2.was talking
3.was studying
4.were talking, was talking
5.was he living,
6.was sitting
7.were doing
8.was saying
9.was learning
10.was practising
11.was working
12.were bathing, were playing
13.was working
14.was going
15.was doing
ex7
1.I had done...
2.He hadn't taken...
3.She had gone...
4.I hadn't seen...
5.I had never...
6.She had fallen...
7.They had just...