My head hurts. I ____ see the doctor.
must
You ____ bang the glass.
mustn't
You ____ buy a ticket.
must
You ____ touch the animals.
mustn't
You ____ shout.
mustn't
You ____ be quiet.
must
My tummy hurts. I ____ take medicine
must
My ear hurts. I ____ go to the doctor.
must
You ____ drop litter.
mustn't
You ____ feed the animals.
mustn't