1.
Alan out almost every day last year, but now he can't afford it.
had eaten
was eating
ate
used to eat
2.
He had been away for many years and when he visited his native town, he saw that it greatly.
had been changing
had changed
changed
was changing
3.
It wasn't raining when I looked out of the window; the sun was shining. But it earlier. That's why the ground was wet.
rained
had rained
had been raining
was raining
4.
I looked everywhere for my car keys and then I remembered that my son the car to work.
took
was taking
had been taking
had taken
5.
When Alice was small, she of darkness and always slept with the light on.
afraided
was afraid
used to be afraid
had been afraid
6.
Greg didn't want to be late for the theatre. He drove as fast as he could. The play as he walked in the door of the theatre.
was just beginning
just began
had just began
had been just beginning
7.
Our neighbours called the police when they found out that somebody into their house.
had been breaking
had broken
was breaking
broke
8.
Our clothes were wet because we in the rain.
had been walking
were walking
had walked
walked
9.
Hardly the place of our destination when it became quite dark.
we had been reaching
had we reached
we were reaching
we reached
10.
Her face was stained with tears and her eyes were red. She .
cried
had cried
had been crying
was crying
11.
He didn't see me as he was reading when I into the room.
came
had come
was coming
had been coming
12.
Before Adam got married, he hiking to the mountains every summer. Now he goes to the seaside with his wife.
had gone
went
had been going
would go
13.
I saw Paul at the airport. He for his brother's plane to arrive from Canada.
had been waiting
was waiting
waited
had waited
14.
It wasn't raining when I left my office in the evening, but the ground was wet. It all day.
had rained
was raining
had been raining
rained
15.
Suddenly they heard a strange noise and at each other in horror.
had been looking
were looking
had looked
looked
Answers & Comments
1. used to eat
2. had changed
3. had been raining
4. had taken
5. used to be afraid
6. was just beginning
7. had broken
8. had been walking
9. had we reached
10. had been crying
11. came
12. would go
13. was waiting
14. had been raining
15. looked