Grammar
Used to + Verb
Use this structure to talk about past habits.
I used to ride a bike with three wheels when I was a kid
I didn't use to like salad,but now I do
What did you used to after school?
Ancient Romans used to get together with their friends in public baths.
Ago
Use ago to talk about past events.Ago comes after a time expression
I met him
a week
She was born
Two years
It happened
A long time
Conjunction:So and because
So means"as a result"Because means "for the reason that."
Tom was tired.He went to bed.(result)
Tom went to bed.He was tired.(reason)
Tom was tired,so he went to bed.
Tom went to bed because he was tired