高等继续教育 / 专科英语I
正确率：100%
题型描述: 单选题
The old man returned to the house to ＿＿＿＿＿＿ all the doors were locked.
A.insure against
B.assure of
C.ensure of
D.make sure
The old man returned to the house to ＿＿＿＿＿＿ all the doors were locked.
A.insure against
B.assure of
C.ensure of
D.make sure
参考答案：
佳题速递：