.—Steve come back because the window is open. —Yes.but he _______left it open last night.
-- Have you moved into your new house? -- Not yet. The rooms _______.
Mary hurt her friend’s feeling, but she didn't do it ____purpose.
Do you think _____ important _____ us to learn a foreign language?
—I’ll travel to Switzerland this summer. —________.
Claire had her luggage an hour before her plane left.