English ECAT Exams Quizzes MCQs Quizzes English ECAT Active and Passive Voice Online Test 3

Question:
I am not doing sums.

Option A):
Sums were not being done by me.
Option B):
Sums had not been done by me.
Option C):
sums are not being done by me
Option D):
Sums have not been done by me.

Correct Answer is Option C):
sums are not being done by me