The horse is getting old and cannot run __________it did.
The horse is getting old and cannot run __________it did.
A、as faster as
B、so fast than
C、so faster as
D、as fast as
【正确答案】:D
【题目解析】:句子的意思是:那匹马渐渐的老了,不能再跑的像过去一样快
as +形容词或者副词的原级+as 像....一样 
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