Grandmother: John, I've got a stomach ache ____1___ won't go away. Where did you buy those vegetables? John: I got them from the stall (摊位) ___2____ is on the corner. Grandmother: Oh, dear! I don't know the man _____3____ owns that stall. John: The man ___4_____ served me was very friendly. And he had prices ____5____ were much lower than everywhere else. Grandmother: It's not the prices ___6____ worry me these days. I'm sure the farmer ____7__ grew those vegetables used pesticides (杀虫剂)! You should go to the stall ____8___ sells vegetables free of pesticides. You'll recognize it because the owner keeps a parrot ___9_____ can talk!