The city of Nanchong has grown so fast that it’s at leastwhat it used to be.A. five times

问题补充：

The city of Nanchong has grown so fast that it’s at leastwhat it used to be.

A. five times the size of

B. five times the size as large as

C. five times larger

D. five times size as

答案：

(答案→)A. five times the size of

B. five times the size as large as

C. five times larger

D. five times size as

解析：这题考察倍数的表达：倍数+the+名词+of…,句意是：南充市发展迅速以至于现在是过去的5倍大。选A。