单项选择题
In Basic American Table manners，（）on the table are acceptable only between course，not while you are eating.
A.handsB.elbowC.forkD.smoking
单项选择题 When goods are transported by road，rial，or air，the contract of carriege takes forms of（）or Air Way Bill.
单项选择题 You should use for a napkin only for your（）when dinning out .
单项选择题 If you found a insect in your soup when you are having a business meal，you should（）.
