21. To many teenagers the cellphone is not only useful tool but also way to have fun and

发布时间：2020-08-16 13:41:33


21. To many teenagers the cellphone is not only     useful tool but also      way to have fun and be cool.
A. the…the
B. an…the
C. a…a
D. a… 不填

网友回答

A. the…the
B. an…the
(答案→)C. a…a
D. a… 不填
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