The sentence has two errors. rewrite the sentence correctly. the students are cooking. the boy are stirring the pot slow. the girl chopped vegetables. she is adding the vegetables to the pot.

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.