Question

    Select the most appropriate option to substitute the

    underlined segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’. Since 10 o’clock in the morning he worked on this design.
    A he was working Correct Answer Incorrect Answer
    B he had worked Correct Answer Incorrect Answer
    C he has been working Correct Answer Incorrect Answer
    D No substitution required Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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