Before the tourists set off , they spent much time setting a limit _____ the expenses of the trip.
| A．in | B．for | C．to | D．about |
. When the last prize had been awarded _____ everybody cleared off.
| A．and | B．so |
| C．or | D．不填 |
Although he had only entered the contest for fun, _____ he won first prize.
| A．but | B．and |
| C．even | D．不填 |
Just because they make more money than I do, _____ they seem to look down on me.
| A．so | B．and |
| C．but | D．不填 |
He was not an actor, who often appeared on stage, _____ a writer, writing stories.
| A．but | B．and |
| C．then | D．so |
The point is not who said the words, _____ they are true or not.
| A．but whether | B．and whether |
| C．but how | D．and how |