Boundaries: Punctuation and Sentence Structure

SAT Reading and Writing· difficulty 3/5

Eager to test the new spectroscopic equipment ______ the chemistry students arrived at the lab nearly an hour before their scheduled session.

Which choice completes the text so that it conforms to the conventions of Standard English?

  • A

    (empty)

  • B

    ,

    check_circle
  • C

    :

  • D

    ;

Explanation

The introductory adjective phrase "Eager to test...equipment" modifies the subject and is followed by a comma.

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