HAVE TO/DON'T HAVE TO
You ______ wear a helmet when riding a bike.
→ (have to / don’t have to)
have to
You ______ stop when the traffic light is red.
must
She ______ speak three languages.
can/is able to
When I was a child, I ______ climb trees easily.
could/was able to
Students ______ eat in the classroom
aren't allowed to
We ______ wake up early on Sundays.
→ (have to / don’t have to)
don't have to
You ______ smoke in the hospital.
mustn't
When I was younger, I ______ run very fast.
could/was able to
After trying many times, she ______ fix the car.
managed to
You ______ park your car in the street tomorrow. It’s forbidden.
won't be allowed to
You ______ finish your homework today. It’s optional.
A) have to
B) don’t have to
don't have to
Students ______ use their phones during the exam.
A) must
B) mustn’t
mustn't
I ______ help you tomorrow if you need it.
A) can
B) could
C) will be able to
Can/will be able to
He ______ escape from the building during the fire.
A) could
B) managed to
C) can
managed to
We_____________drive since his accident.
A) wasn't allowed to
B) hasn't been allowed to
hasn't been allowed to
She ______ go to school tomorrow because it’s a holiday.
doesn't have to
I ______ remember to call my mom tonight.
must
The English test is tomorrow. I'm sure he __________________pass easily.
will be able to
We ______ see the mountains from our hotel room.
could
He ______ enter the club because he was under 18
wasn't allowed to
what is the difference between "mustn't" and "don't have to"?
What is the difference between "must" and "be allowed to"?
Must conveys obligation while be allowed to expresses permission
Can we use "be able to" in any tense?
Yes, we can.
What is the difference between "Could" and "Managed to"?
MANAGED TO: a specific ability/achievement .
What is the difference between "mustn't" and "not be allowed to"?
None.