题目:
Despite a growing population, in 1998 the United States used 38 billion fewer gallons of water a day when comparing it to the period of all-time highest consumption almost 20 years earlier.
选项:
A、day when comparing it to the period of all-time highest consumption almost 20 years earlier
B、day than it did during the period of all-time highest consumption almost 20 years earlier
C、day than were used almost 20 years earlier, which had been the all-time high consumption
D、day, compared to almost 20 years earlier, that having been the all-time high consumption
E、day, which is in comparison to the period of all-time highest consumption almost 20 years earlier
答案:
B