Multiple choice

Directions: Fill in the blank.

A series of sightings of UFO's ______ turned the sleepy town into a tourist attraction.

  1. has

  2. have

  3. can

  4. may
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The phrase 'a series of' is a collective noun phrase that takes a singular verb. Even though 'sightings' is plural, the true grammatical subject is 'series' (singular). This is why 'has' (singular) is correct, not 'have' (plural).

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