We missed our train, and ________ the next train was delayed, ________ we had to wait for another two hours.
Please keep us __________ of any change of your address as soon as possible.
The man who had killed his wife was sentenced __________ the death penalty.
The teachers promised to __________ the wishes of the parents before making any change.
These youths are __________ better educated than those already in the marketplace.
We hope your suggestion will contribute __________ the problem.