问题
Leshan city isn’t what it used to be,and it is ________.
A:3 times bigger than the past
B:bigger than 3 times in the past
C:the 3 times size of its past
D:3 times bigger than it was
B:bigger than 3 times in the past
C:the 3 times size of its past
D:3 times bigger than it was
正确答案是：
