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