You ____ be quiet in the library. (must / can't)
You must be quiet in the library.
He ____ speak three languages when he was 4 years old. (could / must)
He could speak three languages when he was 4 years old.
I think you _____ go to the doctor. (can / should)
I think you should go to the doctor.
The cat ____ ride a bike. (can't / mustn't)
The cat can't ride a bike.
You have coronavirus, you ____ go to school (mustn't / couldn't)
You have coronavirus, you mustn't go to school.
___ you solve a Rubiks cube? (can / must)
Can you solve a Rubiks cube?
When you were a baby, _____ you walk? (could / must)
When you were a baby, could you walk?
We ______ get our vaccinations soon! (have to / mustn't)
We have to get our vaccinations soon!
___ I borrow your pencil? (may / must)
May I borrow your pencil?
___ you open the window please? (can / should)
Can you open the window please?
They _____ drive in the snow today. (may / shouldn't)
They shouldn't drive in the snow today.
Where _____ I visit in Ukraine? (ADVICE)
Where should I visit in Ukraine?
The boy ____ ride a skateboard. (ABILITY / NEGATIVE)
The boy can't ride a skateboard.
Please ____ I use your motorbike? (REQUEST)
Please may / can / could I use your motorbike?
You _____ visit Antarctica without proper equipment. (ADVICE / NEGATIVE)
You shouldn't visit Antarctica without proper equipment.
We ____ turn off our mobile phones in the monastery. (OBLIGATION)
We must / have to turn off our mobile phones in the monastery.
