---How do you find the match between Spain and Switzerland?---It's         ！ Powerful Spain lost the game by 0∶1.

After playing football for more than half an hour, the students took ______ rest.

Einstein’s Theory of Relativity is so ________that most of us can not understand it.

English has been very popular because it is the _______ language in many western countries.

Your ideas are very interesting, but we need ______ suggestions to get us out of the mess.