I. 1. some -> any
2. are -> is
3. some -> any
4. aren't -> isn't
5. are -> is
II. 1. There are two chairs in front of the table in the room.
2. There is a dustbin near my bed.
3. There are five French students in his class.
4. There is no milk left in the table.
5. Is there any cheese in that sandwich?