根据句意和汉语提示完成句子。

1. If you get up late, you'll ________ (错过) the early bus.

2. How far is it from Zhengzhou to your hometown (家乡)? It's about 600 ________ (公里).

3. I'll stay at home _________ (一直到) the snow stops.

4. Nothing can _________ (改变) Mr. Wang's idea.

5. Everyone ________ (应当) take are of the public phones.

下腔静脉（）。

A.是全身最大的静脉

B.由两侧髂外静脉合成

C.由两侧髂内静脉合成

D.由髂内、外静脉汇合而成

E.以上都不是