1. Terry was fatter.
Terry hadn't done to be so thin.
2.Gary was sure his keys were in his pocket.
Gary was had forgotten his keys.
3.Last summer Julia got up early every morning.
Last summer Julia. had to,early every mornng.
4.I thought the book seemed familiar.
I thought had the book before. (HAD)
5.When he was younger david played tennis.
David had used when he was younger.
6.We missed the bus so we look a taxi.
We had the bus.
7.In those days we spend the summer in the mountains.
In those days we would have been the summer in the mountains.