The iphone 4s, ________ by Apple, sells well across the world.
| A．produce | B．produced |
| C．producing | D．to produce |
A(n) _____ dressed speaker is more likely to leave a pleasant impression on the audience.
| A．appropriately | B．informally |
| C．casually | D．complexly |
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 |