Unit 4 Seeing the doctor同步练习一、选出与其它单词不同类的一项。( ) 1.A.fever B. fly C. cough D. toothache( ) 2. A. sweets B. water C. juice D. milk( ) 3. A. giraffe B. bear C. panda D. apple( ) 4. A. help B. see C. Helpful D. look( ) 5. A. chicken B. fish C. orange D. duck二、...