Which of the phrases (A), (B), (C), and (D) given below should replace the phrase given in ‘’bold’’ in the following sentence to make the sentence grammatically meaningful and correct. If the sentence is correct as it is and no correction required, mark (E) as the answer.
What we ‘’have done’’ is from humanity point of view ?
We use past perfect continuous when we discuss about something that had started beyond past and continued till past. Hence, correct formation is have been doing
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