English ECAT Exams Quizzes MCQs Quizzes English ECAT Spotting Errors Online Test 5

Question:
Whatever work
(A)That which you undertake
(B)put your best efforts
(C)in it
(D)No error

Option A):
(D)
Option B):
(B)
Option C):
(C)
Option D):
(A)

Correct Answer is Option B):
(B)