Complete the sentence in reported speech. Please.....​

He said he liked this song

Where was my sister

She didn't speak Italian

said hello to Jim

The film had begun at 7 o'clock

Didn't play on the grass

Where had he spent his money

He never made mistakes

Did she know Robert

Didn't try it at home

1.     We will be busy ... . We will be packing our things.
2.     Why are you taking this basket? – I am going to buy a lot of vegetables.
3.     If she does not come tomorrow, ring her up.
4.     Shall I open the window? – No, you needn’t. It’s fresh enough in the room.
5.     I am sure that if they see me again, they will recognize me at once.
6.     Tomorrow by 6 he will have written a letter.
7.     She will have worked at this school for twenty years by 2012.
8.     On Sunday at this time I will be watching television.
9.     – How do you get from here to London Bridge? - I don’t know, but I will ask a policeman.

1)Do reseraches make observation?
Who make observation?
What do researches make?
What do researches do? 
2)Does technology make life easier?
What makes life easier?
What does technology do?
How does technology make life?
What does technology do?
3)Does radio broadcast news?
What broadcasts news?
What does radio broadcast?
What does radio do?
4)Did they start researching this this problem yesterday?
Who started researching this problem yesterday?
What did they start researching yesterday?
When did they start researching this problem?
What did they do yesterday?
Which problem did they start researching yesterday?
5)Did sciences contribute much to modern technology?
What contributed much to modern technology?
What did sciences do to modern technology?
Why did science contribude?
How did science contribute to modern technology?

Вот, правда, 25 не получилось, потому что к некоторым предложениям можно задать не более 4х вопросов))