Question 27: Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions: Whoever said this (A) he must have been a liar because it is (B ) something (C) that even a child knows to (D) be true.

he must => must

noun clause: wh-word/ if / whether + S+ V = plays the role of a clause => The verb that follows is always in the singular form must be the main verb of the subject whoever said this

=> the subject “he” is redundant

This sentence translates as follows: Whoever says this is definitely a liar because even a child knows what is true.