1) Choose the correct modal verbs for the
sentences.
You have to/should show your passports at the desk.
1 You'd better not/oughtn't to lose your travel pass.
2 You shouldn't/don't have to dance if you don't
want to.
3 If you go to Peru, you must/had better go to see
Machu Picchu.
4 You mustn't/needn't swim when the red flag is up.
5 Do I need to/Must I take my ID card with me?
6 I can't stay late. I've got to/should get up early.​