Where on __ could you have put the money?A.earth B.business C.holiday D.career
问题描述：
Where on __ could you have put the money?A.earth B.business C.holiday D.career
答
a
on earth 究竟
答
A. earth
on earth 究竟，到底
答
A
on earth 固定用法‘ 究竟’
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