UNIT 7. Around the world 7B must, mustn't and needn't, page 67
2 In some Muslim countries, you mustn't eat with your left hand.
3 In lots of countries, you must eat everything on your plate.
4 In Australia, men mustn't wink at women they don't know.
5 In the UK, you must say 'please' when asking for something.
6 In the UK, you mustn't talk with your mouth full.
7 In Switzerland, guests must arrive on time.
1 needn't recharge
2 mustn't forget
3 needn't hurry
4 mustn't watch
5 needn't get up
6 mustn't wear
1 You needn't take off your shoes.
2 You must use a knife and fork.
3 You needn't take a gift.
4 You mustn't put your elbows on the table.
5 You mustn't eat noisily.
6 You must give the waiter a tip.
Students' own answers