问题补充：
This cake is that one. Which of the following is wrong?
A. three times the size of
B. three times so big as
C. three times bigger than
D. one third as big as
答案：
A. three times the size of
(答案→)B. three times so big as
C. three times bigger than
D. one third as big as
解析：考查比较等级的用法。按照比较级有倍数修饰时应该放在比较级之前的句式来做。
