4 Choose the correct words. 1 You should / must take an umbrella with you.
2 You shouldn't / mustn't drive faster than 30 in
this area. It's the speed limit.
3 You shouldn't / mustn't laugh at your sister.
She doesn't like it.
4 You should / must pay now. You can't pay later.
5 You shouldn't / mustn't shout in class.
