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.

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Salma Morrison

11 November, 13:17

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.

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Kody Huynh · Answer 1

The sentence that correctly uses a comma to separate the introductory phrase is the first one - Before researchers are granted access to the rare-book stacks, they must be approved through a security screening process.