问题补充:
It is reported that the United States uses energy as the whole of Europe.
A. twice as
B. twice as much
C. twice as many
D. much twice as
答案:
A. twice as
(答案→)B. twice as much
C. twice as many
D. much twice as
解析:考查倍数表达法。倍数 as 形容词/副词(原级)+名词as…;本题的energy不可数名词,用much修饰。结合句意可知B正确。