1. Her friends are impolite.
(-) : Her friends aren't impolite.
(?) : Are her friends impolite ?
2. This is Tim's textbook.
(-) : This isn't Tim's textbook.
(?) : Is this Tim's textbook ?
3. Ms. Hoa and her sister are beautiful.
(-) : Ms. Hoa and her sister aren't beautiful.
(?) : Are Ms. Hoa and her sister beautiful ?
4. My cousins are from Australia.
(-) : My cousins aren't from Australia.
(?) : Are my cousins from Australia?
5. Her eyes are brown.
(-) ; Her eyes aren't brown.
(?) : Are her eyes brown ?