问题
选择题
Over time,__________custom of kissing developed as_______way for adults to express their love for each other.
A．a; the
B．a; a
C．the; the
D．the; a
答案
答案：D
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Over time,__________custom of kissing developed as_______way for adults to express their love for each other.
A．a; the
B．a; a
C．the; the
D．the; a
答案：D