谁帮我解决以下三道题!急!原句：Who broke a window in the woman's house?(改被动

谁帮我解决以下三道题!急!
原句：Who broke a window in the woman's house?(改被动语态)
Whom( )a window in the woman's house( )by?
原句：They are against our project,so we have to change it(保持原意）
They aren't( )( )of our project,so we have to change it
原句：If you are strict in your study,you'll catch up with your classmates（保持原意）
（ ）strict in your study,( )you'll catch up with your classmates