GMAT考试，语法题的部分经常会出现考标点符号的，而常用的标点符号有：Semicolons分号、Colons冒号、Commas逗号、Parentheses括号、Dashes破折号、Hyphens连字号、Ellipsis省略号和Quotation marks引号。有关分号和冒号的知识点。

    1. Ellipses 省略号(…)

    a. Use an ellipsis to indicate that some words have been left out of a quotation.引用省略

    b. Use an ellipsis to indicate that something unwritten came earlier.

    例句: “… I do,”said Mimi.

    c. Use an ellipsis to indicate a sentence trailing off.

    Imagine this as the final sentence of a book chapter—it entices you to turn the page to read what happens next:

    Tom and Carlos were camping in the woods, asleep in their tent, when they heard it—the sound…

    d. Use an ellipsis to indicate a long, slow break.

    Long, slow break: There it was again…that soft but eerie sound.

    Fast, crisp break:

    There it was again—that loud, crashing sound.

    2. Quotation marks引号(“ ”)

    a. Use quotation mark to enclose what someone says.

    b. Do not use quotation marks with indirect quotations.

    c. If a quotation is half direct and half indirect, do not use quotation marks unless you want to emphasize the quotation

    d. Thoughts or questions in someone’s mind (in other words, ideas not spoken out loud) do not need quotation marks.

    e. Use quotation marks for definitions.

    f. Use quotation marks for sayings.

    g. Use quotation marks for labels, markings, signs, etc.

    例句：Label this container “good toys” and that one “broken toys.”

    h. Use quotation marks to indicate the clever or silly use of a word.

    标点符号和双引号的位置： 1. Commas and periods always go inside the quotation mark.

    2. Colons and semicolons always go outside the quotation mark.

    3. If a quotation within a quotation, use single quotation marks around it.

    4. If only yes or no is quoted, you do not have to use quotation marks.