------------- you watch TV all day? No, I can't.
Can
Can you swim in the river? No, I ----------------- .
can't
The test is after 3 days. I ---------------- study.
must
pupils ------------------ go to school on Friday morning.
mustn't
Dolphins -------------------- swim better than humans.
can
You ---------------- shout at your little sister.
mustn't
We --------------------- run on ice.
mustn't
People -------------- bring their sleeping bags and tents if they go camping.
must
You -------------- make your bed in the morning.
must
I -------------- play video games a lot.
mustn't
