What's the matter?
He's got a backache?
What's the matter?
He's got a cold
When your leg hurts you __________ ride your bike.
mustn't
What's the matter?
You've got a temperature
We __________ do our homework before we watch television.
must
What's the matter?
She's got a stomach ache.
When you’re in the library you __________ be quiet.
must
What's the matter?
He's got a headache
What's the matter?
She's hot a toothache
When you’ve got a stomach-ache you __________ eat sweets.
mustn't