题目内容
【题目】Helen is 15 years old, and Joan is 15, too. So Helen is ____ Joan.
A. as big as B. as older as
C. as old as D. so old as
【答案】C
【解析】
试题分析:句意:Helen今年15岁了,Joan也15岁了,因此Helen和Joan一样大。as big as和……一样大;as older as形式不对,两个as之间用形容词原级;as old as和……一样大,表示年龄;so old as应该用在否定句中。根据句意可知选C。
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