The family, single-parent families is one of the problems in today's society, so the father/mother in a single-parent family will cannot raise a family complete.
Single-parent families One of the problems in today's society, so the father / mother in a single-parent family. Three children will not have a complete family.
Single parent family, and is one of the problems of present society. So, father / mother in a single parent family. Can"t raise you have a perfect family.