高等继续教育 / 大学英语语法
正确率：100%
题型描述: 单选题
We are not satisfied with what we ＿＿＿＿＿ in our research.
A.have achieved
B.had achieved
C.achieve
D.will achieve
We are not satisfied with what we ＿＿＿＿＿ in our research.
A.have achieved
B.had achieved
C.achieve
D.will achieve
参考答案：