Only by chance()A.I heard that her mother had diedB.did I hear that her mother had diedC.Had I heard that her mother had diedD.I had heard that her mother had died.

Only by chance()
A.I heard that her mother had diedB.did I hear that her mother had diedC.Had I heard that her mother had diedD.I had heard that her mother had died.

翻译吗?仅仅是偶然
B 主要考察only的倒装用法

仅仅是偶然
该短语如果位于句首，后面的句子倒装