The black people thus lay on the hard wooden boards, _________ stand up.

---Sir, do you have any double room ______ now? ---Just a moment, I will find out.

—It’s amazing that an Australian girl sailed round the world alone in about 200 days. —That’s an inspiring story. Her courage is really _______.

In the meantime, the question facing business is whether such research is   the cost. 

(2013·高考天津卷)I think watching TV every evening is a waste of time—there are________  meaningful things to do.