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    #1

    Over 1900 years ago, ....

    Over 1900 years ago, ......... , who worked in Alexandria, Egypt, classified the stars by their brightness.


    1. he is a Greek astronomer named Ptolemy
    2. it was a Greek astronomer Ptolemy
    3. a Greek astronomer named Ptolemy
    4. a Greek astronomer whose name was Ptolemy

    What's wrong with No.4?

  1. Raymott's Avatar
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    #2

    Re: Over 1900 years ago, ....

    Quote Originally Posted by Freeguy View Post
    Over 1900 years ago, ......... , who worked in Alexandria, Egypt, classified the stars by their brightness.


    1. he is a Greek astronomer named Ptolemy
    2. it was a Greek astronomer Ptolemy
    3. a Greek astronomer named Ptolemy
    4. a Greek astronomer whose name was Ptolemy

    What's wrong with No.4?
    4 is grammatical, but it's not as natural as 3.

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