What did the mechanic have to do?
He HAD TO REPAIR cars.
What did Ron have to do in Hogwarts?
Ron HAD TO DO magic.
When he was young, Grandpa Bill / BE / a firefighter.
When he was young, Grandpa Bill USED TO BE a firefighter.
Kelly / NOT HAVE / blonde hair when she was 10 but now she does.
Kelly DIDN'T USE TO HAVE blonde hair when she was 10 but now she does.
What did the astronauts have to do?
They HAD TO VISIT other planets / FLY to the moon.
Mum / EAT / meat but now she eats vegetables.
Mum USED TO EAT meat but now she eats vegetables.
When Ben was a little boy, he / WALK / to school.
When Ben was a little boy, he USED TO WALK to school.
you / GO / to the mountains when you were little?
DID you USE TO GO to the mountains when you were little?
What did the police officer have to do?
He HAD TO ARREST criminals.
My grandpa / LIVE / in Jamaica when he was a young man.
My grandpa USED TO LIVE in Jamaica when he was a young man.
What did Bart have to do?
Bart HAD TO STUDY maths.
What did Ricky have to do?
He HAD TO GO to the doctor.