Ответ:
1) I did Homework
I didn't do homework
Did I do homework?
2) He worked at a company
He didn't work at a company
Did he work at company
3) Mike was a student
Mike wasn't a student
Was Mike a student?
4) She slept after dinner
She wasn't sleep after dinner
Was she sleep after dinner?
5) We worked yesterday
We didn't work yesterday
Did we work yesterday?
6) They drank tea
They didn't drink tea
Did they drink tea?
7) Helen had a car
Helen didn't have a car
Did Helen had a car?
8) You was a good friend
You wasn't a good friend
Was you a good friend?
9) You were good friends
You weren't good friends
Were you good friends?
10) It was difficult to study
It wasn't difficult to study
Was it difficult to study?
Объяснение: