题目内容：
Much ______been said about the problem but nothing _______ been done so farA.has， had
B.had， has
C.had， had
D.have, have
参考答案：
选择题：Much ______been said about the problem but nothing
- 题目分类：河南师范大学-小学教育（本科)-大学英语Ⅱ
- 题目类型：选择题
- 查看权限：VIP
A.has， had
B.had， has
C.had， had
D.have, have