Составьте 10 предложений с глаголом must/musn't ! нужно!

1)If you receive an invitation, you must reply
2)You must arrive exactly on time
3)You mustn't belch at the table
4)In many countries, you mustn't use your finger to beckon somebody-it is very rude
5)In Britain, if you are invited for a meal at somebody's home, you must take a gift.
6)You must wear school uniform
7)You mustn't speak with food in your mouth.
8)In many parts of Asia, you mustn't touch or pat somebody on the head
9)You must clean your teeth every day
10)In business emails, you must use colloquial language