问题 选择题 选出每组中不同类的单词。( ) 1. A. sweet( ) 2. A. watermelon( ) 3. A. salty( ) 4. A. potatoesB. sourB. tastyB. cucumbers B. grapesC. grapesC. healthyC. freshC. apples 答案 1. C 2. A 3. B 4. A