I don’t know the reason _______ you were absent from the meeting, and I am not sure whether someone will tell me the reason _______you haven’t told me.
We should do all we can the children who lost the chance to go to school.
---- You can take a walk daily if you want to keep healthy. ---- .
our earth, or else it will be no longer fit for us to live on.
Professor Williams keeps telling his students that the future to the well- educated.
Trees on the hills can stop the rains from away the soil.