1.Her ... hurts.She should go to see the dentist. ( tooth/teeths/teeth/tooths ) 2.They congratulated me ... the exams with high marks. A.passed   B.having passed       C.to pass          D.on passing 3.How are you ? - I'm very ... , thank you.( good/well/better/bad ) 4.He advised me ... the 6 o' clock train. A.will catch      B.caught       C.to catch      D.catching 5.Children are ... of seeing the dentist. ( afraid/interested/worried/keen )