Complex sentence: Upon arriving in England, the overriding need was to make a good home for the children, but at the end of the first year, the teachers had been available to the children without any time off or uninterrupted privacy for themselves.
Split into simpler sentences: Upon arriving in England, the overriding concern was to make a good home for the children. At the end of the first year, the teachers had been available to the children without any time off or uninterrupted privacy for themselves.