question_answer

           

Direction: In the following questions, a part of the sentence is underlined. Below are given alternatives to the underlined 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].

She hurt her back while she worked yesterday.

A)  worked out                   

B) had worked

C) was working

D) No improvement