SENTENCE IMPROVEMENT: From the drop-down list, identify the error in each sentence. 5.
Dr. Smith had ever since he graduated from medical school wanted to become a
medical missionary.

subordination
unity
parallelism
dangling modifier
misplaced modifier
logical construction

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.