题目内容

Upon receiving an invitation, no matter whether you accept it or not, it is polite of you to reply promptly.

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When responding to a letter of invitation, you can start by mentioning the main contents of the invitation briefly.

If you invite somebody to speak at a conference, you should mention in the invitation letter the type of speech, the topic or the scope and how long the speech will be.

Like all the business letters, the professional invitation should be written in a formal tone.

It’s rude to mention the date on which the receiver of the letter should provide his or her reply.

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