问题补充:
It is reported that the United States uses energy as the whole of Europe.
A. as twice
B. twice much
C. twice much as
D. twice as much
答案:
A. as twice
B. twice much
C. twice much as
(答案→)D. twice as much
解析:考查倍数的表达:句意:据报道美国人使用的能源是整个欧洲的两倍。倍数的一种表达是:倍数+as+adj+as,倍数在前,排除A,后面有as了,所以选B。