Are you in the room?
No, I'm not.Iam in the room.（一般疑问句，并作否定回答？）Are you in the room? No, I 'm not.I sell a new skirt to Lucy（同义句）They have a watch each.同义句A new skirt is sold to Lucy by me. / I sell Lucy a new skirt。They each have a watch./ Each of them has a watch.