问题
选择题
In communication,a smileis usually _____strong sign of a friendly and _____open attitude. [ ]
A. the;/
B.a;an
C.a;/
D.the; an
答案
答案：C
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In communication,a smileis usually _____strong sign of a friendly and _____open attitude. [ ]
A. the;/
B.a;an
C.a;/
D.the; an
答案：C
