Select the most appropriate option to fill in blank no. 4
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 1, i.e. slows.
Context: The sentence is: “But when forests thrive, they absorb carbon dioxide and (4)______ down climate change.” We are talking about what forests do: absorb carbon dioxide and do something to climate change.
Meaning of the words:
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Slows – present tense singular verb (used with 'it')
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Slow – base form or plural verb (used with 'they')
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Are slowing – present continuous tense
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Slowing – present participle or noun form
Correct word: Slows – because the subject of the sentence is “forests”, and here we are using compound verbs.
“they absorb … and slows…” is incorrect.
But actually, the sentence is:
“they absorb carbon dioxide and slow down climate change” — so the correct verb must match “they”, which is plural.
So the correct verb is “slow”, not “slows”.
Correction: Apologies — after reviewing again, the correct subject is "they" (forests), and it is plural. So the correct verb should be "slow" (not "slows").
So the correct answer is option 2, i.e. slow.
Reason: In compound verb constructions with the same subject (forests), the verb should match the subject.
“they absorb carbon dioxide and slow down climate change.”
We do not use ‘slows’ with a plural subject.
Final Sentence: But when forests thrive, they absorb carbon dioxide and slow down climate change.
Hence, the chosen option is correct.