You can’t guess what difficulty I had_____ your home.
Mary found herself looking forward more and more ________ the coming entrance examination.
__________ from heart trouble for years Mr. White has to take some medicine with him wherever he goes.
The room is very large and only little room_______ by the new piano.
How dirty the windows are! They really require _______.
The professor________ the perfect return of Shenzhou 7 in 2008______ “the most exciting thing in history” in his speech.