let is__(查明)who broke the window.
Who broke the window?
--Who broke the window?
Please _________ who broke the window.
Please ____ who broke the window
—Who broke the window?
who broke the window --I____(是我)
—Who broke the window yesterday?
Can you ()who broke the window yesterday
please find out who broke the window.中who broke the window是有
Who broke that window?
The teacher asked (angry) ,"Who broke the window?"
The boy who broke the window was tom