Which of these 3 methods of quote integration do/does NOT require the writer to compose a complete sentence before the quotation? CHOOSE ALL CORRECT ANSWERS.
The comma.
No punctuation
The colon.

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.