Present Perfect:
I have done my homework already.
He hasn't done his homework yet.
I have never met such a nice person.
Present Simple:
I go to school every morning.
We usualy have tea after breakfast.
She works as a shop assistant.
Present Continuous:
I am listening to music now.
We are watching TV right now.
Peter is playing football now.
Past Simple:
I saw him yesterday.
They painted the house two years ago.
Nick visited his grandmother last week.
Past Continuous:
I was playing tennis when he called me.
She was writing a letter yesterday at 5 o'clock.
We were cooking dinner when he came.
Объяснение:
1) the boy asked if his mom had been ill the day before
2) he wondered if they cleaned the streets every morning
3) she asked weather they were going to play cards in the class
4) we wanted to know if the teacher would put us good marks the following day
5)Mary asked if I had seen him
6) the teacher asked if they had been seriously ill the previous week
7) She asked who had given Tom the money the previous day
8) he wanted if Nick had ever been abroad
9) She wondered weather I had enjoyed the concert the previous day
10) He asked where I would be waiting for
11) Lucy wondered what languages I should study next year
12) the girl asked weather they had got married
13) the manager wondered if that investment had carried interest
14) I asked if he could wait a little longer
15) I wondered why Bob had not answered my letter