根据汉语意思写单词。

1. The little dog is very sad, because it can't find its _____(主人).

2. The girl in a_____ (马尾辫)over there is my sister.

3. When you want to get a job from a company, you should give them your _____(简历).

4. Tom is a _____(有礼貌)boy. He always says "hello" to his teachers.

5. I want to play tennis with my friends, but I can't find my _____(球拍).

现代城市的含义主要包括三个方面的因素，即( )。

A．人口规模、空间规模、产业结构

B．人口数量、产业构成、行政管辖的意义

C．人口数量、空间数量、行政管辖的意义

D．人口规模、产业构成、城市化水平