选出不同类的单词：（   ）

A．east

B．west

C．best

D．south

根据中文提示补全句子。
【小题1】Don’t run on the ______ (楼梯).
【小题2】Look, the boy is crossing the road at the ______ ______ (安全十字路口).
【小题3】The girl gets sick, because she ______ (吃) a bad apple last night.
【小题4】Students should know how to ______ ______ (保持安全).
【小题5】You can call “110” when you are ______ ______ (遇到麻烦).

—What do you do on the Spring Festival?  (   )
—________.

A．We eat zongzi

B．We eat moon cakes

C．We eat dumplings

选出单词中不同类的一项：(   )

A．noodles

B．dumplings

C．food

(   )

A．bag

B．schoolbag

C．box