Directions: In the following question, a part of the sentence is underlined. Below the sentence are given three possible substitutions labelled (1), (2) and (3) for the underlined part. If one of them is better than the underlined part, indicate that as your answer. If none of the substitutions improves the sentence, indicate (4) as your answer.

I am sure you may secure good marks, if you had not wasted your time foolishly.