5предложений со словом must и 5 с have to

You must be polite with your teachers and other grown ups.
He must come to school on time.
All of us must read this book. 
She looks ill. The doctor must see her at once.
You must do as I tell you.

We have to take a taxi or we will miss the train.
I'm sorry, but I have to leave pretty soon.
I have to keep to a diet, as it was my dodctor's advice.
You'll have to be quick, if you don't want to be late.
If you don't like porridge, you don't have to eat it.