You ...... check your skates before you put them on.
must
You ……………... wear a helmet, and you ………….….. check that it fits correctly.
must - must
You ….……………….. skate in crowds.
mustn't
You …….…………... hold onto a car or bicycle.
mustn't
You ………………….. be a top athlete, but it’s a good idea to be fit!
don't have to
You ........................ use the correct equipment.
must
At a climbing wall, you ………….…………... buy your gear – you can hire it!
don't have to
You ………………........ take risks or do anything silly – safety is very important.
musn't
You ……………..... try to stay calm – you need a clear head to think!
must
We use should / shouldn’t and ought to for strong …………...
advice
We use “must” to tell someone to ………………. something.
do
We use “mustn’t” to tell someone ……………to do something.
not
We use “…………………” to talk about rules or when something is necessary.
have to
We use “don’t have to” when something isn’t ……………………
necessary
