选出不同类的一项。
(_____) 1. A. dog B. cat C. foot
(_____) 2. A. apple B. book C. pencil
(_____) 3. A. eraser B. pear C. banana
(_____) 4. A. school B. classroom C. door
(_____) 5. A. grape B. orange C. sweet
(_____) 6. A. notebook B. crayon C. pineapple
(_____) 7. A. sweet B. notebook C. glue
(_____) 8. A. football B. basketball C. run