We can never expect____ bluer sky unless we create_____less polluted world.（）
| A． | a; a | B． | a; the |
| C． | the; a | D． | the; the |
The aim of education is to teach young people to think for themselves and not follow others ______ .
| A．blindly | B．unwillingly | C．closely | D．carefully |
Facing up to your problems ____ running away from them is the best approach to working things out.
| A．more than | B．rather than | C．along with | D．or rather |
Sofialooked around at all the faces: she had the impression that she most of the guests before.
| A． | has seen | B． | had seen | C． | saw | D． | would see |
While staying in the village, James unselfishly shared whatever he had with the villagers without asking for anything.
| A． | in return | B． | in common | C． | in turn | D． | in place |
No matter how carefully you plan your finances, no one can _____ when the unexpected will happen.
| A．prove | B．imply | C．demand | D．predict |