we must water .it is very important to us A;leave B；safe C;save 选哪个,说理由.

题目

we must water .it is very important to us A;leave B；safe C;save 选哪个,说理由.

答案

我们必须____水,水对我们来说很重要.
a:离开(选a不扯淡么) b:安全(说不通吧) c:(这个嘛应该可以翻译成节约吧)
鉴于a,b都不对,所以选c