问题 选择题 选出不同类的单词。( ) 1. A. uncle ( ) 2. A. tree ( ) 3. A. who( ) 4. A. sister( ) 5. A. farmerB. auntB. playerB. lookB. happyB. doctor C. memberC. nurseC. howC. brotherC. come 答案 1. C 2. A 3. B 4. B 5. C