He made up his mind to devote his life________ pollution ________happily.

If you _____ your homework by 7:00, you cannot watch the drama on TV. [ ]

Studies show that people are more ________ to suffer from back problems if they always sitbefore computer screens for many hours. [ ]

We live in an age more information is available with greater ease than ever before.

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