My Tooth Hurts!

Today's Mission
    What's wrong with Liz？
    Conversation A
    Greg： Honey, where should I put these snacks？
    Liz： Just put them over there. Oh, can you give me a granola bar？
    I didn't have breakfast this morning.
    Greg： Sure. Here you go, honey.
    Liz： Thank.
    Greg： I'll clean up the back room a little. Then I have to go to work.
    Liz： Ow！ My tooth！
    Greg： What's wrong？
    Conversation B
    Liz： I took a bite of the granola bar, and now my tooth really hurts！
    Greg： Which one？
    Liz： This one.
    Can you see anything？
    Greg： No. Come over here into the light.
    Liz： Ow！ It really hurts.
    Greg： OK. Open wide. Hmm…yes, uh-huh, OK.
    Liz： So what did you see？
    Greg： Nothing. I don't know what I'm looking for.
    Liz： Then I need to go to the dentist. Can you watch the store？