Form, Structure, and Sense: Agreement and Usage

SAT Reading and Writing· difficulty 3/5

A series of unexpected delays ______ caused the construction project to fall significantly behind schedule.

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

  • A

    are

  • B

    have

  • C

    were

  • D

    has

    check_circle

Explanation

The subject is "series" (singular), not "delays." A singular subject takes the singular auxiliary "has."

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