Nobody told us 后填什么?A 、 what to do it ,B、how to do ,C、 when to do it D、where to do选哪个并给出理由!

问题描述:

Nobody told us 后填什么?A 、 what to do it ,B、how to do ,C、 when to do it D、where to do
选哪个并给出理由!