They found __________ impossible to finish so much work in such a short time.
--Jack, is this your jacket? --No, it _______ be my jacket. My jacket is black but this one is blue.
--This computer doesn't work, Sir. --Well, bring it back, ______ we'll return your money.
--What’s your favorite film, Jane? --My favorite film is “Resident Evil: Retribution(生化危机5:惩罚)”because it is __________.
-- How far is it from here to the Great Wall? -- About in a car.
--When did your pen pal arrive _______ Beijing? --He got here_______ the morning of the 9th of June.