Was it you or the wind that shut the door?

问题描述:

Was it you or the wind that shut the door?
这句话应该看做是强调句?还是that引导的定从?

是强调句我看成定从也没问题吧?不是定语从句,shut the door是you or the wind的动作,而不是用来修饰you or the wind的