There is no easy walk to __________ freedom anywhere,and many of us will have to pass through __________ valley of the shadow of death again and again before we reach the mountaintop of our desires.
Hardly ____ into the country ____ it began to rain.
It is I ____ singing in the garden.
It was ____ the old worker came that we ____ the experiment.
____ be careful when crossing the street!
____ come again.