Nowhere else _____ be able to find a larger display of sea animals, including one of the largest collections of sharks in the world.

— Why are you so popular with your students?— As a teacher, I seldom give my students so difficult a problem ____ they cannot work out.

The American Foundation for the Blind has been trying to figure out how to make public libraries __________to blind readers .

“_____ when does the pub stay open？”  “About midnight.”

Without ____ participation of so many people, the completion of such a project in a short period would be out of ______ question.