问题
选择题
It is reported that great ______ made to look into the case have paid off.[ ]
A. attentions
B. efforts
C. troubles
D. cares
答案
答案：B
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It is reported that great ______ made to look into the case have paid off.[ ]
A. attentions
B. efforts
C. troubles
D. cares
答案：B