It ________ her four hours_________ the workyesterday.

When I entered the room, I found a little boy _____ on his mother’s knees _____ to draw a picture. [ ]

____ foreign guests come to our school for a visit every year and we exchange ____ information about education. [ ]

Little ______ that we were watching his everymove，so he seemed to be going his own wayin this business.

There is no such place ______ you dream of in this world.