The window that faces east won't open.为什么是faces而不是facing

The window that faces east won't open.为什么是faces而不是facing Tom still live in the apartment,___ the window faces east. l live in the room whose window faces south中room为什么是定语啊 whose window faces south改成that从句 Our bedroom faces south. 为什么用faces 而不是face. The house which faces （ ） east is mine.中间为什么不要加the的 “The room whose window faces south is mine”引导词为什么要用“whose”,不 Why all the smiling faces?为什么是 smiling 不是smile? the problems that our world faces The room of _____ the window faces south is mine The house＿ Window faces south is for There are three faces ___ the window? 用什么介词?