问题补充：
The new castle being built for fun will be the present one。
A. three times more than size of
B. as three times big as
C. bigger three times than
D. three times as big as
答案：
A. three times more than size of
B. as three times big as
C. bigger three times than
(答案→)D. three times as big as
解析：考查倍数表达。倍数表达：倍数as+形容词的原级+as….；或者用：倍数+比较级+than….;本题中的three times 就是倍数，放在最前面。符合要求的只有D项。句意：正在被建的用来娱乐的新的城堡将会是现在的这个城堡的3倍大。故D正确。
