ПОМОГИТЕ ПОЖАЛУЙСТА СР ПО АНГЛ!!

Какой класс?

Вариант 3
Правильный вариант заполнения пропусков:

Yesterday, I was watching a movie with my friends.
While I was eating breakfast, my phone rang.
She went to the store to buy some milk.
They were playing basketball in the park when it started to rain.
He was studying for his exam all night.
I wrote a letter to my grandmother last week.
The children were laughing.
We did not see the movie because we were busy.
What were you doing yesterday at 5 pm?.