I know it din't important but I can't help____about it.a.but to thinkb.thinkingc.tod.think

问题描述:

I know it din't important but I can't help____about it.
a.but to think
b.thinking
c.to
d.think

thinking
can not help doing sth 情不自禁做某事

B
can't help doing ..
忍不住干。。。

选b
can't help doing就是忍不住做某事

can't help doing sth情不自禁做某事
所以是B

b
can't help doing 情不自禁得做某事

b
can't help doing sth.
固定用法,表示忍不住做某事
P.S:原题是否应该是I know it isn't important……