看一看，选择与划线部分相同类别的选项。
1. Whose cap is it? [ ]
A. shoes
B. brother
C. brown
2. It’s time for math class.[ ]
A. school
B. clock
C. Chinese
3. It’s time for lunch.[ ]
A. dinner
B. eat
C. red
4. It’s on the first floor.[ ]
A. three
B. second
C. four
5. That is a playground.[ ]
A. garden
B. floor
C. colour