以下与Letters/Letter to the editor有关的信息中，有误的是（）。
举一反三
- Letters to the editor:
- Social business letters include the following but ___.() A: Letters of condolence B: Letter of Resignation C: Letters of thanks D: Letter of Invitation
- “Apple” is a____word. A: fiveletter B: five letters C: five letter D: fiveletters
- In Britain the ( ) are all pained red A: letter boxes B: letters box C: letters boxes D: letter box
- The letter to point out a mistake by the letters recipient is called the letter of _______.