Her brother is with my son at home.改为疑问和否定句.

问题描述:

Her brother is with my son at home.改为疑问和否定句.

Her brother isn't with my son at home.
Is her brother with my son at home?

改为疑问句是:Is her brother with my son at home?
否定句是:Her brother is not with my son at home.