Directions: In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.
You have been working very hard (A)/ for the past two years.(B)/ isn't it? (C)/ No Error (D)

Options

A. A
B. B
C. C
D. D

Answer

C