The factory used 65 percent of the raw materials, the rest of which _______saved for other purposes.(2011安徽卷27)
He goes back home to see his parents ______ few weeks.
—Excuse me. Is this the right way to the Summer Palace? —Sorry, I am not sure, but it ____ be.
They looked at each other, ______.
Mr. Smith, _______ of the ______ speech, started to read a novel.
Look, what a dirty classroom we have got! It really wants ______.