A:My toothache started nearly a month ago . The pain's been keeping me awake . Would you please have a look ? B: Open your mouth , please . Which one ? A: The one right at the back . B: I'm afraid we can ' t save that one . It will have to come out . A: Will it hurt much ? B: I'll give you an injection , then you won't feel pain . A: ( <MASK> ) OK , it's all over . Spit there and bite the cotton ball tightly in place for half an hour .
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