题目内容：
13. Victor took a bus and headed for home, ____ if his wife would have him back.
(A) not to know
(B) not known
(C) not knowing
(D) not having known
参考答案：
选择题：13.Victor took a bus and headed for home, ____ if
- 题目分类：郑州工程技术学院-大学英语（2）.
- 题目类型：选择题
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Victor took a bus and headed for home, ____ if his wife would have him back.
(A) not to know
(B) not known
(C) not knowing
(D) not having known