A、Nobody was doing anything to prevent tooth trouble. B、The filling stopped teeth from falling out. C、Dentists put animals on th

M: How’ s your toothache?
W: I went to the dentist last night. It has a huge filling in it now.
M: I hate having my teeth filled.
W: So do I. I’d rather have a tooth pulled than filled.
M: Teeth keep causing trouble, and nobody really does anything about it. I can ’ t understand why.
W: I’ve heard they’ re working on that.
M: I’ m not sure I’ d want to eat with others’ teeth.
W: Well, that’s not how it works. The idea is to develop a plastic tooth.
M: Really? What makes it stay there?
W: So far they have only tried it with animals.
Q1: Which of the following statements is true according to the conversation?
Q2: What does the man complain of?
Q3: What do we learn about tooth transplant in the passage?