I don't know( )a whom to go there Bwhat I did Cwhat did I do Dwhere did I

问题描述:

I don't know( )a whom to go there Bwhat I did Cwhat did I do Dwhere did I
Awhom to go there Bwhat I did Cwhat did I do Dwhere did I

选B.
后面是一个从句.表示i did what.