高等继续教育 / 高级英语II
正确率：100%
题型描述: 单选题
We have done everything to ＿＿＿＿＿＿ that teh experiment will be a success.
A.ensure
B.reasure
C.assure
D.insure
We have done everything to ＿＿＿＿＿＿ that teh experiment will be a success.
A.ensure
B.reasure
C.assure
D.insure
参考答案：
佳题速递：