Помогите пожалуйста! Я незнаю что поставить месть пробела: ...

Нюра

Помогите пожалуйста! Я незнаю что поставить месть пробела: 1)When he came home he____(to read) an interesting story about the animals.
2)kate entered the classroom when John ______(to stand) at the blackboard.
3)when his mother returned home he______already(to do) his home exercises.
4)Asel liked to listen to pop-music when she _______(to be) younger.
5)she didnt sleep when her brother____(to play) the piano
6)When she came to his home she not_____(to know)that  he___(to leave for Astana
7)Aidar told us that he____(to invite) us to his birthday party in January.