单选题 The dentist gave the patient his opinion about what to do.(　　)

单选题 The woman was working toward earning a ____________ degree in dentistry(　　)

单选题 Oral health includes the teeth, gums, and other structures of mouth.(　　)

单选题 The dentist provided _____to her patients on the correct way to floss.(　　)

单选题 The ________ examined the patient’s teeth and gums.(　　)

单选题 Regular teeth cleaning is vital to good ________ health.(　　)

单选题 Several dentists worked together in a group _________. (　　)

单选题 The dentist___________ the patient with gum disease.(　　)

单选题 Dentists often employ support staff.(　　)