Our physics teacher is famous for distributing papers to students while at the same time chewing his gum quite loudly. No error.
“At the same time” means the same thing as “while.” Therefore, it is redundant, and doesn't need to be included in the sentence.
940 MCQ for effective preparation of the test of Redundancy of English Grammar section.
Read the MCQ statement: Our physics teacher is famous for distributing papers to students while at the same time chewing his gum quite loudly. No error., keenly and apply the method you have learn through the video lessons for Redundancy to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 573-4852.