They usually do homework at home at 7:00.变一般疑问句、否定句、画they的特殊疑问句

问题描述:

They usually do homework at home at 7:00.变一般疑问句、否定句、画they的特殊疑问句

Do they usually do homework at home at 7:00?
They don't usually do homework at home at 7:00.
Who usually do homework at home at 7:00.