question_answer

Direction: In the following questions a part of the sentence is printed in bold. Below are given alternatives to the bold part at (a), (b) and (c) which may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (d).

I worked in this office since 2005.

A)  am working      

B)  have worked

C)  have been working

D)  No improvement