It is good for us to practise more exercise. We...
We should practise more exercise.
It is necessary to wear uniform at this school. We...
We must/have to wear uniform at this school.
People under 18 are not allowed to get a driver's license. People under 18...
People under 18 mustn't get a driver's license.
It's forbidden to play loud music after 10 p.m. You...
You mustn't play loud music after 10 p.m.
It's a good idea to take an umbrella with you. You...
You should take an umbrella with you.
It is essential that we pay attention to the HW correction. We...
We have to/must to pay attention to the HW correction.
It's not good for her to eat so much fast food. She...
She shouldn't eat so much fast food.
It's not necessary to take water bottles to school. Students...
Students don't have to take water bottles to school.
It's not necessary that Mike waits for me. Mike...
Mike doesn't have to wait for me.
It would be good for him to see a doctor. He...
He should see a doctor.
It's essential that you brush your teeth before going to bed. You...
You must/have to brush your teeth before going to bed.
It's good for people to have a balanced diet. People...
People should have a balanced diet.
It's not recommended that people spend too much time online. People...
People shouldn't spend too much time online.
What's does this sign mean?
You mustn't swim here.
What does this sign mean?
You mustn't use your cellphone.
What does this sign mean?
You mustn't park here.
