A.Use a napkin for your nose.B.Sit up straight at the t……

单项选择题At business cocktail reciptions，hold your drind in your（）hand.

A.right
B.left
C.both
D.one of

单项选择题What way to eat bread is proper？（）

A.Using the knife to cut it.
B.Using the table utensils to eat it.
C.Using fingers to break it.
D.Using the spoon to crumble it.

单项选择题Use for a napkin only for your（）.

A.nose
B.face
C.forehead
D.mouth

单项选择题When should the buyers open a letter of credit in a transaction？（）

A.before contract or confirmation is signed by buyers and sellers
B.when the buyers want to open a letter of credit
C.when the buyers and sellers finished the transaction
D.after contract or confirmation is signed

单项选择题A gentleman must help a lady whom has escorted to the table，to all she wishes；but it is improper for him to offer to help other ladies who have escorted.The word escort means ？（）

A.go with someone as a partner
B.go with someone as a gurd
C.go with someone as an escapee
D.go with someone as an adviser