Digital PSAT Reading and Writing Practice Question 259: Answer and Explanation
Question: 259
Solving the mystery of how bears stay so healthy during hibernation can not only reshape our current understanding of cardiovascular illness, ______ also deepen our knowledge about various ways to keep the human body healthy as well. Bears are incredibly well-equipped to combat cardiovascular disease. It should come as no surprise if a future therapeutic or cure for human cardiovascular disease originates from these magnificent creatures.
Which choice completes the text with the most logical transition?
- A. but
- B. for
- C. and
- D. however
Correct Answer: A
Explanation:
A. “But” is the appropriate transition to use with the phrase “not only…” to show a second idea for emphasis. The other options would not pair appropriately with “not only” to make a proper phrase.
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