题目：What does the ltter E refer to?
A、Provide a quick context.
B、 Provide key information points you want to share.
C、 Explain why you are speaking now.
D、 Decide on what note you want to end a conversation.
题目：What does the ltter E refer to?
A、Provide a quick context.
B、 Provide key information points you want to share.
C、 Explain why you are speaking now.
D、 Decide on what note you want to end a conversation.
