You (SHOULDN'T / DON'T HAVE TO) go to bed late when you have to get up early the next day.

You (MUSTN'T / HAVE TO) lie to people if you want to stay friends with them.

You (SHOULDN'T / HAVE TO) pay if you break something in a shop.

A: Where’s Katie? I (CAN'T / COULDN'T find her. B: She (CAN / MIGHT) be in the playground. I saw her going in that direction a few minutes ago.

You (OUGHT TO / SHOULDN'T) eat vegetables every day to be healthy.

I’m not sure if I (CAN / MAY) finish this work today. I (CAN / MIGHT) have to do it tomorrow.

A: (CAN / MAY) you play the piano? B: No, but my brother (CAN / MIGHT) play very well.

The football match (CAN / MAY) be cancelled because it (MIGHT NOT / MIGHT) snow this weekend.

We (DONT HAVE TO / MUST) turn off the lights when we’re out, to save electricity.

You (SHOULD / DON'T HAVE TO) bring food for the trip. Lunch will be provided.

When my grandad was younger, he (CAN / COULD) see very well but now he’s old, he (CAN'T / COULDN'T) read without glasses.