不好意思没粘全,When ____ into your bedroom,the ice cream will soon melt.So you’d better eat it right now or put it in the fridg

不好意思没粘全,When ____ into your bedroom,the ice cream will soon melt.So you’d better eat it right now or put it in the fridge.
A.to take B.to be taken C.taking D.taken
为什么选D 不选C啊