题目内容：
-We haven’t heard from Jane for a long time.( )-What _____ to her? A A. was happening
B B. to happen
C C. has happened
D D. having happened
参考答案：
选择题：-We haven’t heard from Jane for a long time.( )-Wh
- 题目分类：平顶山学院-市场营销（专升本）
- 题目类型：选择题
- 查看权限：VIP
-What _____ to her? A A. was happening
B B. to happen
C C. has happened
D D. having happened