In the following question, some parts of the sentences have errors and some are correct. Find out which part of a sentence has an error and choose to the appropriate letter (a, b, c). If a sentence is free from error, your answer is (d)Question : The teacher made the boys (a)/ to do the sum (b)/ all over again. (c)/ No error (d)

• A. a
• B. b
• C. c
• D. d