Question

    The total mass of the Galaxy, which had seemed

    reasonably well established during the 1960s, has become a matter of considerable uncertainty. i.which had seemingly reasonably well ii.which had seemed reasonable well iii.which has seemed reasonably well
    A Only i. Correct Answer Incorrect Answer
    B Both i and ii Correct Answer Incorrect Answer
    C Both ii and iii Correct Answer Incorrect Answer
    D Only iii Correct Answer Incorrect Answer
    E No improvement required Correct Answer Incorrect Answer

    Solution

    The sentence is referring to a point in past, hence, had is correct. Seemed is the main verb which requires an adverb to qualify it, hence, reasonably is the verb which is correct.

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