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MACKENZIE 2009

Speak Up

GROW YOUR OWN TEETH

Recent advances in stem cell research are giving older people the hope that they may soon be able to throw away their dentures in favor of the real thing. If this dental dream ___(I)___ a reality, stem cells ___(II)___ taken from the patient, cultured in a lab and then reimplanted under the gum in the patient's jaw where the tooth is missing. A healthy tooth is expected to grow in two months. British scientists have already successfully experimented on mice, and similar experiments in humans are expected to get underway shortly.

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The words that properly fill in blanks I and II, in the text, are: 

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