I knew it's not important but I can't help __about it.选项 a.but to think b.thinking c.think d.to think

问题描述:

I knew it's not important but I can't help __about it.
选项 a.but to think b.thinking c.think d.to think

B
can't help doing Sth. 词组~ 忍不住要做某事

B,can't help doing,忍不住做什么...

B
can not help doing sth...
不得不做,忍不住做某事