问题补充:
House prices keep rising these days. A flat in our city costs now as in 1990.
A. as three times much
B. as much three times
C. much as three times
D. three times as much
答案:
A. as three times much
B. as much three times
C. much as three times
(答案→)D. three times as much
解析:倍数表达句型。倍数+ as + adj. +as …。房价这些天一直上涨,在我们这座城市买一套房的花费现在是1990年的三倍。