All of them try to use the power of the workstation ___ information in a more effective way.
| A．presenting | B．presented | C．being presented | D．to present |
I thought we'd be late for the concert，________ we ended up getting there ahead of time.
| A．but | B．or | C．so | D．for |
It is often said that the joy of traveling is ________ in arriving at your destination ________ in the journey itself.
| A．/；but | B．/；or | C．not；or | D．not；but |
—I wonder how much you charge for your services.
—The first two are free ________ the third costs $30.
| A．while | B．until | C．when | D．before |
Try to read stories in English and speak in English whenever you can，________ you will see more progress over time.
| A．but | B．or | C．and | D．so |
Stand over there ________ you'll be able to see the oil painting better.
| A．but | B．till | C．and | D．or |