高等继续教育 / 大学英语语法
正确率：100%
题型描述: 单选题
Can you make sure ＿＿＿＿＿ the gold ring?
A.where has Alice put
B.where had Alice put
C.where Alice has put
D.where Alice had put
Can you make sure ＿＿＿＿＿ the gold ring?
A.where has Alice put
B.where had Alice put
C.where Alice has put
D.where Alice had put
参考答案：