You _______________ eat loudly, but if you slurp or belch, it shows that you like the food very much.
Don’t have to
You _______________ arrive on time, take off your shoes, bring a small gift, and eat well to show you are enjoying the food.
Should
You _______________ give four of anything, as four is an unlucky number.
Mustn’t
You _______________ give flowers as many chinese associate them with funerals.
Shouldn’t
You ______________ move to a first-name basis until advised to. You _______________ address the person by an honorific title and their surname.
Mustn’t; should
It is a great honour to be invited to someone’s home. If you _______________ accept the invitation, you _______________ offer a good excuse.
Can’t; must
You _______________ to be serious all the time. The chinese have a good sense of humour. You _______________ be ready to laugh at yourself sometimes.
Don’t have to; should
You _______________ greet the oldest person first.
Must