What is the comprehensive definition for "metaphysical"

Choose the form of the modifier that best completes the sentence. jerry can play dominoes better anyone anyone i've ever seen anyone else i've ever seen anyone i've never seeb

Johnson's speech covers the issue of what rights

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.