What was she doing yesterday?
She was driving a car
What were they doing yesterday?
They were riding (their) bikes
What was he doing yesterday?
He was cleaning the window
What is he going to do tonight?
He's going to eat...
What were they doing yesterday?
They were taking an exam
What is she going to do at the weekend?
She's going to rollerblade/She's going to go rollerblading
What is she going to do tomorrow?
He's going to buy a...
What is he going to do for dinner?
He's going to make a salad
What was he doing yesterday?
He was reading a book
What is he going to do in the Andes?
He's going to climb a mountain
What are they going to do tomorrow?
They are going to run