A．the sound of drilling is painful.
B．the woman has to have her tooth refilled.
C．teeth cannot be transplanted.
D．people can transplant hearts.
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A．Doctors will try plastic teeth on people.
B．Doctors have made plastic teeth work on animals.
C．Toothache always bothers people.
D．Doctors are trying to transplant a person's tooth to another person.
A．Suspicious and angry.
B．Surprised but hopeful.
C．Doubtful and worded.
D．Shocked but moved.
A．There aren't enough cabinets.
B．There is too much noise.
C．Office supplies are taking us space.
D．Some teachers don't have desks.