单项选择题
A．ordered B．bought C．cooked D．finished
A．customer only gave small tips B．some customers had strange ideas about tipping C．the store forbade the box boys to take tips D．he didn’t want to fight with the customers
A．look for his teeth and buy all of them B．arrest the dentist at once C．make all the shops stop selling teeth D．buy all the teeth in all the shops