Which of the following sounds most polite?A.Could you help me with this assignment?B.I

大学 公共英语 已帮助 人

Which of the following sounds most polite?

A.Could you help me with this assignment?

B.I know you are so knowledgeable in pragmatics, help me please.

C.Will you help me with this assignment?

D.Please, help me with this assignment.

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