问题
选择题
Your smile is one of the strongest tools that make ______ possible for you to meet new people. [ ]
A. it
B. them
C. this
D. /
答案
答案：A
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Your smile is one of the strongest tools that make ______ possible for you to meet new people. [ ]
A. it
B. them
C. this
D. /
答案：A