DIRECTIONS: in the following question, a part of sentence is bold. Below are given alternatives to the bold part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose “No Improvement” option.
. Since he worked hard he failed to secure good grades.

Options

A. A) As
B. B) When
C. C) Though
D. D) No Improvement

Answer

C

Explanation

(3) Though (Couj.) : although, despite the fact that
Since (Conj.) : from a time in the past until a later past time, or until now , because , as
As (Conj.) : because
When (Conj.) : considering that
Here, Though is the right usage.