Which sentence demonstrates the connotative meaning of "family"? The most fundamental group in society is the family.
Family often symbolizes feelings of safety and belonging.
A family can be a group of people who live under one roof People sharing the same biological lineage are family.

1. in which sentence is the underlined portion a predicate nominative? for astronauts, going into space to repair orbiting equipment becomes a challenge. for astronauts, going into space to repair orbiting equipment becomes tricky. for astronauts, going into space to repair orbiting equipment becomes challenging. for astronauts, going into space to repair orbiting equipment becomes frequent.