题目内容：
18. Before going to bed, she _______ that the door was locked.
(A) insured herself
(B) assured
(C) assured herself
(D) insured
参考答案：
选择题：18.Before going to bed, she _______ that the door
- 题目分类：郑州工程技术学院-大学英语（2）.
- 题目类型：选择题
- 查看权限：VIP
Before going to bed, she _______ that the door was locked.
(A) insured herself
(B) assured
(C) assured herself
(D) insured