问题
选择题
21. T
o 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
答案
答案：C
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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
答案：C