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For English native speakers. What does this "it" refer to?

Hi, everybody! I'd like to ask about the following sentences.

 Dr. Brook says just one to two hours of breathing automobile exhaust in traffic can be deadly.

 "And that short, few-hour exposure is able to trigger a heart attack where they might not have had IT for days or months, or never."

(taken from:

http://www.voanews.com/english/news/environment/St... )

What does this "it" refer to? "A heart attack," "exposure," or anything else?

Thank you in advance for your help.

7 個解答

相關度
  • 9 年前
    最愛解答

    A Heart Attack.

    And that short, few-hour exposure is able to trigger a heart attack where they might not have had [A Heart Attack] for days or months, or never.

  • 9 年前

    A heart attack.

    "And that short, few-hour exposure is able to trigger a heart attack where they might not have had [heart attack] for days or months, or never."

  • 9 年前

    Hello, the word "it" in the article refers to a heart attack. I clicked the link and read the article. It is a terribly written sentence, but when you read the complete sentence, you can tell the author is referring to a heart attack. Hope this helps... (oh and that article is over a year old... why are you asking a ?? now ha ha)

  • 5 年前

    interior sight English speaker is more suitable advantageous. The order of words is really major in English; to assert "interior sight English speaker" is to assert that he's interior sight to the conversing of English. to assert "English interior sight speaker," is to assert that he's a speaker of "English interior sight," or an English speaker of "interior sight," which makes no experience.

  • granny
    Lv 7
    9 年前

    heart attack

  • 匿名
    9 年前

    he is almost definitely referring to the exposure to the exhaust its really the only way the sentence make Sense

  • 9 年前

    This is a confusing statement for anyone, but I believe it refers to exposure.

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