Excuseme,butcanyoutellme___________?

I prefer studying English at home ______ the match.

There is no _________ that the Chinese people will present to the world a successful, splendid and unforgettable exposition（博览会）.

I study really hard ________ I can make my dream come true.

“Underground” is the only word in the English language _____ begins and ends with the letters “und”.