用括号内所给形容词的适当形式填空。

1. Mr Read is very _____ (short).

2. She is _____ (old) of us all.

3. I think diving is _____ (difficult) activity of all.

4. English is _____ (important) than math.

5. Kitty has _____ (little) milk of the three.

暗装墙内的电话分线箱、过路箱，其安装高度宜为底边距地面（）。

A．0.5～1.0m

B．0.5～1.5m

C．1.0～1.5m

D．1.5～2.0m