He cooked a great meal to _______ the help of his neighbors in finding his lost little daughter.

 Because of the lack of funds, the tunnel project has already fallen behind ________.

 Achieving a high degree of proficiency(精通）in English as a foreign language is   not a mysterious _______ without scientific basis.

As long as you are sure this plan works, you should ____ with it, whatever happens. 

—Do you believe that opportunities always     ________   the prepared minds?—I couldn't agree more.