Choose the answer that is correct and clearly expressed in Standard English.

The museum closes at five ______ visitors should arrive early.

Answer and explanation

Correct answer: C. ; therefore,

  1. Step 1: Identify the structure: the sentence consists of two independent clauses: 'The museum closes at five' and 'visitors should arrive early.'
  2. Step 2: Connecting two independent clauses with a transitional adverb like therefore requires a semicolon before the adverb and a comma after it.
Answer
; therefore,
Why not the others: A comma alone before therefore creates an incorrect run-on comma splice between independent clauses.

Practise more Usage and mechanics.

Free questions with an explanation for every one, and full timed ACT mock tests.