16Hit 1600
Standard English ConventionsEasy–MediumNo comma between subject and verb

Standard English Conventions practice question

The slow-growing corals that build the ____ depend on sunlight reaching the algae that live inside their tissues.

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

  1. A. reefCorrect
  2. B. reef,
  3. C. reef;
  4. D. reef —

Answer: A. reef

The long subject 'The slow-growing corals that build the reef' connects directly to its verb 'depend' with no punctuation.

Why the other answers are wrong

B. reef,
A single comma must not separate a subject from its verb.
C. reef;
A semicolon cannot stand between a subject and its verb.
D. reef —
A single dash here wrongly severs the subject from its verb.

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