Zimmer
The German word for sitting room is Wohnzimmer (lit. living room)
room mate = Stubenkamerad (male) room mate = Stubenkameradin (female)
The German word 'zimmer' is 'room' in English.
The German word 'buch' translates into English as book. As in the English language it can mean a book which one reads or to book a hotel room for example.
There is a word Stube meaning a room (of a house), and Stuben is the plural, as "rooms."
Chre is not a German word
"mit" is the German word for "with".
The German word for their is "Ihre."
The word FROM in German is von
The German word for when is wenn.
The word for is in German - " ist "
The German word for he is er.