One-third of the computers in the office ----- new memory cards.
Correct answer: B. have
- A. have been
- B. have
- C. has been
- D. has
Explanation
In this sentence, "One-third of the computers" is the subject. The phrase "of the computers" makes it clear that we are talking about a plural subject. Therefore, the verb should be plural. "One-third of the computers" is a plural subject, so it requires the plural verb "have."
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Chemical bonding explains molecular shape through VSEPR theory and distinguishes sigma bonds from pi bonds. Questions involve hybridization, bond angles, dipole moment and bond energy, including how electron-pair repulsion determines geometry and how bond polarity differs from the overall polarity of a molecule.
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