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.