You ______ be late for school.
You mustn't be late for school.
I forgot your phone number so I ____ call you yesterday.
couldn't
when she was a kid / Mum / climb trees ?
Could your Mum climb trees when she was a kid?
What is on that sign? I _____ see it very well.
can't
when she was 18 / your Mum / use a computer?
Could your Mum use a computer when she was 18?
Luckily, Josh _____ make his breakfast because his sister made it for him.
didn't have to
when they were teenagers / your grandparents / ride a bike?
Could your grandparents ride a bike when they were teenagers?
It started to rain. Josh and his sister got very wet so they _____ go home and change their clothes.
had to
You _____ go now; you can stay a bit longer.
don't have to
when he was a kid / your Dad / speak French?
Could your Dad speak French when he was a kid?
Yesterday Josh _____ come to school at half past eight.
had to
You _____ speak French to travel.
You don't have to speak French to travel.
when he was a boy / Dad / make a cake?
Could your Dad make a cake when he was a boy?
This is a non-smoking area, so you ____ smoke here.
This is a non-smoking area, so you mustn't smoke here.
Visitors to the zoo _____ feed the animals.
mustn't
Last Wednesday Josh ____ study late at night.
had to
It's Friday today. I ____ do any homework.
It's Friday today. I don't have to do any homework.
The bus was very late so we both ____ walk.
had to