The world is not only hungry but also it is thirsty .It seems strange that nearly 3∕4 of the earth’surface is covered wi
问题描述：
The world is not only hungry but also it is thirsty .It seems strange that nearly 3∕4 of the earth’surface is covered with water______we say we are short of water
A if B so C because D while
答
D 地球将近四分之三都是水,但我们却说我们缺水
while.而,然而
I like tea while she likes coffee.
我喜欢喝茶,而她喜欢喝咖啡.