The first question was quite difficult but the rest _______ easy, _______ surprised us all.

The manager said, “Every means _____ tried, but there is no result.”

The number of students in Class Seven ____ fifty-six, and a large number of them ____Jay Chou.

You should never base anything on a theory that _________ impractical in practice.  

There is _____　a pen, an eraser and some pencils in her pencil-box.