Helen is 15 years old, and Joan is 15, too. So Helen is Joan.A. so old as B. as older as

发布时间：2020-08-20 18:30:01

Helen is 15 years old, and Joan is 15, too. So Helen is      Joan.
A. so old as    B. as older as  C. as old as

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解析：句型as 形容词或副词原形as
和not so/as 形容词或副词原形as
故选C
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