question_answer

Direction: Which of the phrases [a], [b], [c] and [d] given below each statement should replace the phrase printed in bold in the sentence to make it grammatically correct? If the sentence is correct as it is given and no corrections required, mark [e] as the answer.

Setbacks and failures has always been an integral part of science.

A)  has always being.

B)  were always been

C)  has been always

D)  have always been

E)  No correction required