Many students are not __________ the harm of staying up late into the night, which causes damage to their health.
| A．well aware to | B．very aware of | C．aware that | D．well aware of |
The representatives stand for the principle _______ every citizen has a say in their country’s future.
| A．whether | B．that | C．what | D．how |
All his friends admire his creativity, for he always comes up with many _______ ideas in the discussions.
| A．reliable | B．specific |
| C．positive | D．original |
In times of trouble, _______ our spirits are low, telling our worries and fears to friends eases the stress.
| A．when | B．where | C．which | D．that |
We need not feel ashamed of our failure. We may, _______, face it realistically and accept it optimistically.
| A．thus | B．otherwise |
| C．instead | D．indeed |
The smelly water has been found_______ and no longer usable until the chemicals and wastes are removed from it.
| A．to be polluted | B．having polluted |
| C．polluting | D．polluted |