помогите необходимо правильно подобрать время.

1) What were you doing at 9 o'clock yesterday?
2) The moon hasn't risen  yet, and only two stars are shining in the dark blue sky.
3) Where a th baby? The nurse put him to bed.
4) Tomorrow father will come late/
5) The pupils did a lot of exercises before they learned to write dictation well.
6) When mother came home, the children were eating the soup which she had cooked in the morning.
7) What is your brother do every day?
8) When I was about 15 yeard old, I enjoyed playing football.
9) What are you going to do at 8 o'clock tomorrow?
10) He is going to do this work by next Saturday.
11) Listen! Somebody is playing the piano.
12) It usually takes me two hours to get to the centre of the city.