At the beach, you ___________ wear shoes; it's okay to walk barefoot in the sand.

In this library, you _____________ whisper; talking at a normal volume is allowed.

When it rains, we ________________ bring an umbrella to stay dry.

In this restaurant, customers __________ wear formal attire. Casual clothing is allowed.

Visitors _________ pay an entrance fee on Sundays. Admission is free.

X: _________________________ (your friend) do her homework tonight? Y: No, she ________________________, but she ________________________ look after her little brother.

I can't wear jeans to school. All the girls ____________________________ wear a blue skirt. But my brother _______________ ____________ wear a shirt and a tie. He can wear what he wants. That's not fair!

I can't get a tattoo because I'm sixteen. In my country, you 1______________________ be eighteen to get it. But you 2__________________ be eighteen to get a driving licence. You can do it when you're seventeen.

You _______________ wear a helmet when you ride a bike. It's the law!

X: ____________________________ (you) be eighteen to vote in your country? Y: Yes, you __________________________. But to become the president you _____________ ________________ be at least thirty-five.