The solution for exercise 3 in chapter 5.5 - Grammar of Focus 1 - Student's Book by Patricia Reilly, Marta Umińska, Bartosz Michałowski and Rod Fricker
Question
Read text A again and correct the sentences.
Answer
School wasn't fun for Johnny. It wasn't a good experience.
The other students weren't always nice. They were often unfriendly.
Johnny wasn't always happy. Sometimes he was lonely.
Johnny's favourite things weren't Maths and History. They were music and acting.
Johnny could sing very well.
The band was successful but they couldn’t get a record deal.