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    Question

    Choose the correct active/passive voice, which best

    expresses the following sentence:- Scientists successfully conducted a water detection test on Mars.
    A A water detection test on Mars conducted successfully. Correct Answer Incorrect Answer
    B A water detection test on Mars is conducted successfully. Correct Answer Incorrect Answer
    C A water detection test on Mars has been conducted successfully. Correct Answer Incorrect Answer
    D A water detection test on Mars was conducted successfully by scientists. Correct Answer Incorrect Answer

    Solution

    The given sentence is in active voice,as the subject is performing the action.The tense of the sentence is Simple past So we have to write its passive voice. General rule for passive voice object+verb +object.

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