Sometimes the best and most beautiful things in this world ________．but can be felt with the heart．
| A．can see | B．cannot see | C．can be seen | D．cannot be seen |
The worker hunted for jobs in New York for months,____ he could not find any work.
| A．and | B．yet | C．or | D．and but |
Give me one more minute ____ I'll have finished.
| A．so | B．until | C．and | D．when |
____ he was in poor health, he worked just as hard as everyone else.
| A．But | B．Although | C．Even if | D．If |
We arrived at the station ____ the train had left.
| A．after | B．before | C．since | D．when |
___he daydreamed, Peter saw figures in the sky.
| A．Until | B．Since | C．While | D．During |