"Modern lie detectors, which are called Polygraphs, are used to indicate changes in heart rate, blood pressure, breathing rate, perspiration while a person is to be examined."
What does "is to be examined" mean? With what does it replace?
Top answer
That doesn't make sense. I think the writer means this. "
— Clive
That doesn't make sense.
I think the writer means this.
"
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I think the writer means this. "Modern lie detectors, which are called Polygraphs, are used to indicate changes in heart rate, blood pressure, breathing rate and perspiration while a person is being examined."