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1 vote
Which sentence correctly uses a comma to separate the introductory phrase?

Before researchers are granted access to the rare-book stacks, they must be approved through a security screening process.
Before, researchers are granted access to the rare-book stacks they must be approved through a security screening process.
Before researchers are granted access, to the rare-book stacks they must be approved through a security screening process.
Before researchers are granted access to the rare-book stacks they must be approved through, a security screening process.

User Tobiv
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2 Answers

6 votes

Before researchers are granted access, to the rare-book stacks they must be approved through a security screening process.


User Pranav Bilurkar
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7 votes
The first one is the correct answer.
User Alex Zhukovskiy
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