(用所给词的适当形式填空)
It was late at night.Two__1__(German) were sleeping in their room when suddenly，one of them，Mrs.Green，was woken up and found a thief slipping into their room to try his luck.She had three__2__(thousand) dollars in her pocket.“What should I do？Many__3__(thief) usually bring__4__(knife) with them，” she thought in__5__(silent)．
