What are the types of business letters? A: Letters of establishing business relationship B: Letters of shipment C: Letters of claim D: Letters of acceptance E: Letters of quotation F: Letters of enquiry G: Letters of counter-offer H: Letters of negotiation

（）are mentioned at the beginning of the passage. A: Love letters B: Complaint letters C: Thanks letters D: Invitation letters

中国大学MOOC: What categories can letters be divided into? A．Personal Letters B. Social Letters C. Notes D. Business Letters

Generally speaking, letters can be classified into formal letters and informal letters based on the formality of letters.

Could you tell me______ in the Russian alphabet A: how many letters are B: how many letters are there C: how many there are letters D: how many letters there are

All keywords in C are in ____________ A: LowerCase letters B: UpperCase letters C: CamelCase letters D: None of the mentioned

1. What categories can letters be divided into?A．Personal Letters B. Social Letters C. Notes D. Business Letters. A: A．Personal Letters B: B. Social Letters C: C. Notes D: D. Business Letters.

Informal letters are usually business letters or written to strangers.（ ）

Social business letters include the following but ___.() A: Letters of condolence B: Letter of Resignation C: Letters of thanks D: Letter of Invitation

W: John, I thought you were. going to leave early today to take your son to the show.M: I’m stilt planning to. But I can’t leave until I finish typing all the letters.W: Can you leave that until tomorrowM: No. The boss wants them to be finished by tomorrow morning.W: How many have you got leftM: About five.W: Why don’t you just go ahead. John I’ll do the letters for you.M: Thank you very much, Janet. You’re so kind. Where arc the speakers() A: In a classroom. B: In a theater. C: In an office.