поставьте предложения  в утвердительную, отрицательную и вопросительную формы. 1) She came to us yesterday.2) They watched this film last week.3) My mother bought a new book yesterday. 

Did she come to us yesterday?
She didn't come to us yesterday/.

Did they watch this film last week?
They didn't watch this film last week.

Did my mother buy a new book yesterday?
My mother didn't buy a new book yesterday.