From the words or group of words lettered A to D, choose the word or group of words that best completes the sentence below. They kept quiet all the .......

From the words or group of words lettered A to D, choose the word or group of words that best completes the sentence below.

They kept quiet all the .......

Answer Details

The word that best completes the sentence is "while". "They kept quiet all the while" means that they were quiet throughout a particular period of time or during a certain event. The other options - "where", "period", and "interval" - do not accurately convey the sense of time that is being described in the sentence.