问题
选择题
I guess we've already talked about this before but I'll ask you again just _____.[ ]
A. by nature
B. in return
C. in case
D. by chance
答案
答案：C
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I guess we've already talked about this before but I'll ask you again just _____.[ ]
A. by nature
B. in return
C. in case
D. by chance
答案：C