题目内容：
2.The secretary worked late into the night,____a long speech for the president.A.to prepare
B. preparing
C.prepared
D.was preparing
参考答案：
选择题：2.The secretary worked late into the night,____a l
- 题目分类：大学英语1
- 题目类型：选择题
- 查看权限：VIP
A.to prepare
B. preparing
C.prepared
D.was preparing