You’d better go there by train. The train ticket is the airplane ticket. A. as cheap three

问题补充：

You’d better go there by train. The train ticket is the airplane ticket.

A. as cheap three times as

B. as three times cheap as

C. three times cheaper than

D. cheaper three times than

答案：

A. as cheap three times as

B. as three times cheap as

(答案→)C. three times cheaper than

D. cheaper three times than

解析：本题考查倍数表达法。表达倍数时应把表示倍数的词放在比较级的前面，由此可判断此项正确，此处是“倍数词＋比较级＋than”结构。