The book was more interesting than he thought .
The toys were bigger than he thought .
The children were cleverer than he thought .
The street was longer than he thought .
The hat was nicer than he thought .
The film was more interesting than he thought.
The food was tastier than he thought.
The stories were newer than he thought
The woman was more beautiful than he thought
The woman was older than he thought
И так до бесконечности берете первую часть до was /were а дальше просто прилагательные которые подходят
2. I was looking for my pen when my sister came in.
3. He became famous when he sang this song.
4. Mike was talking on the phone when he heard a strange noise.
5. I was taking a Music lesson when my friend called.
Ответ на фотографии.
в третьем был только один вариант, может ты забыл(а) дописать второй, поэтому он без ответа