In the following questions, a sentence/ part of the sentence is printed in bold. Below are given alternatives to the bold sentence/part of the sentence which may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is 'No Improvement'.
Option B is the correct answer.Â
In the given sentence 'to' should be followed by V1 ,called infinite form of verb . Adverb should be used independently.
So the correct form is to clean their rooms quickly
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