Some people say yogurt is ________ than milk for old people. （  ）

A．good

B．well

C．better

D．best

The baby is only 5 ________ old, so he can’t speak now. (   )

A．month

B．months

C．year

D．years

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).

Please play football in the ____. （   ）

A．street

B．playground

选出下列每组单词中不同类的一项．
（______）1. A．USA    B．UK C．PE D．China
（______）2. A．ate B．climb C．met D．saw
（______）3. A．most    B．west C．north D．northeast
（______）4. A．feet    B．men C．photo D．children
（______）5. A．south    B．from C．with D．behind