Unit 3,Seeing a Doctor,Part B,Revise the words about illness,cough fever headache toothache cold flu bird flu stomachache backache cancer blind deaf SARS AIDS sore eyes sore throat high blood pressure heart disease breathing problem,have a cough have a fever have a headache have a cold have the flu have the bird flu have a stomachache have a toothache have a backache have a sore throat have sore eyes have SARS have AIDS have high blood pressure have cancer have breathing problem,Revise the phras