24．The old man came——to the railway smtion，only the train was slowly pulling out of
the station．
| A．and ran；found | B．running；finding |
| C．running；to find | D．To run；finding． |
At discussion, Jack ____ an idea that they should bring down the price of the bicycles.
| A．came about | B．came up | C．came out | D．came up with |
Do you know the waste material can be made use ________ this kind of the toy?
| A．of producing | B．to produce | C．to producing | D．of to produce |
She understood what I was talking about, ____ it was the first time we had spoken together.
| A．whether | B．as if | C．even if | D．Since |
Mr. Black _____ for Shanghai in a few days. Do you know when the earliest plane ____on Sunday?
| A．leaves; takes off | B．is leaving; takes off |
| C．is leaving; is taking off | D．leaves; is taking off |
That hero who died in the war was so brave that he never _____ to the enemies until death.
| A．gave up | B．gave out | C．gave away | D．gave in |