I was walking through to student study area towards the main office of the building where I teach. A bunch of Bio students were studying there for an exam. One of the students turned to a couple of girls studying nearby and asked,
"Do we have to know how the heart works?"

I turn around and say to the student, "Yes. Yes, you do."
"Do we have to know how the heart works?"

I turn around and say to the student, "Yes. Yes, you do."

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