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Unit 4 period 4A 略B 1.c 2.b 3.b 4.c 5.aC 1.toothache，medicine，brush，bedtime2.cold，fever，should，doctorD 1.see the dentist 2.asks a policeman for help3.Go along 4.brushes his teeth5.drink some warm water. 6.eating fruit2.have a rest 8.visit herE Doctor:What’s the matter?Liu Tao: I have a headache，I feel cold.Doctor: Let me check,you have a fever.L  |
