单项选择题

一 It includes merchandise， packaging and shipping， duty if required， any taxes and insurance. （）

A.Could I get an estimate before placing an order
B.What does the estimate include
C.How many would you like to order

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单项选择题

A.Do you know about business tax
B.Can you give me a brief introduction about business tax
C.What do you think about business tax

单项选择题

A.Yes，you’re right
B.No，it’s not the whole story
C.No，you’ re wrong

单项选择题

A.Who are you？
B.What are you？
C.Who is that？