Question : A sentence has been given with a blank to be filled with an appropriate option. Choose the correct alternative.
The frequency of large wildfires ______ dramatically in recent decades.
Option 1: did increase
Option 2: has increased
Option 3: increase
Option 4: have increased
Correct Answer: has increased
Solution : The second option is the correct choice.
Explanation : The subject "frequency" is singular, so the verb should also be in singular form, "has increased". This construction maintains the subject-verb agreement in the sentence.
Therefore, the complete sentence is: "The frequency of large wildfires has increased dramatically in recent decades."
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