Weareshort

來源：國語幫 1.42W

We are short ________energy and water ________ the over population.

A．of; because B．of; because of C．in; because of

句意：因為人口眾多我們缺乏能源和水。

考查固定短語和連詞。缺乏……be short of，所以第一空應填of，排除C；because後接從句，because of後接名詞或名詞*短語，所以第二空應填because of。故選B。