⚡ Month End Offer is live - Get Flat 55% Off on All Courses • Grab it Now! Click Here 00:00:00 AM

    Question

    Water contamination has(1)/ become more serious(2)/

    since chemists have begun(3)/ to use new substances.(4) Read each sentence to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Mark the part with the error as your answer. If there is no error, mark ‘No error’ as your answer (Ignore the errors of punctuation, if any).
    A 1 Correct Answer Incorrect Answer
    B 2 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 4 Correct Answer Incorrect Answer
    E No error Correct Answer Incorrect Answer

    Solution

    Solution: The sentence given in the question is correct: Water contamination has become more serious since chemists have begun to use new substances.

    Practice Next
    ask-question