一、找出下列各组中不同类的单词。
（ ） 1. A. a hat B. a vest C. a pie D. a jacket
( ) 2. A . red B. shoes C. brown D. white
( ) 3. A. a belt B. a hot dog C.a pie D. a sandwish
( ) 4. A. trousers B. socks C.shoes D. apples
( ) 5. A. a camera B. a study C. a kitchen D. a bedroom