Unit 13 Second edition Vocabulary Practice Level 3 painkiller worried happy symptom over-anxious in high spirits diagnosis uptight on top of the world anaesthetic uneasy over the moon panicky recover sad careless down absent-minded homesick inattentive VOCABULARY PRACTICE ANSWER KEY LEVEL UNIT 13 operate Answer Key anaesthetic symptoms painkiller uneasy diagnosis down recover homesick uptight absent-minded over the moon © Cambridge University Press 2012 Level Unit 13