题目内容：
I don't know why he__________in the middle of a sentence.
A．broke away B．broke out
C．broke through
D．broke off
参考答案：
答案解析：
单选题：I don't know why he__________in the middle of a sentence.
- 题目分类：专四
- 题目类型：单选题
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B．broke out
C．broke through
D．broke off