题目内容：
________ is known to us all is that the old doctor, for ________ life was hard in the past, still works very hard in his late life. ( )(本题1.0分)A、 As; whom
B、 What; whom
C、 It; whose
D、 As; whose
参考答案：
选择题：________ is known to us all is that the old doctor
- 题目分类：河南工业大学-工程造价-大学英语（一）
- 题目类型：选择题
- 号外号外：注册会员即送体验阅读点！
A、 As; whom
B、 What; whom
C、 It; whose
D、 As; whose