KomFi. Academy

medium · SAT Reading & Writing

By the time the deep-space probe reaches Neptune in 2030, it ______ on a trickle of nuclear power for more than a decade, its aging instruments still returning data from the outer solar system. Which choice completes the text so that it conforms to the conventions of Standard English?

  1. will have operated
  2. operated
  3. has operated
  4. will operate

Sign up free to see the explanation and track your rank →

More SAT Reading & Writing practice

All Reading & Writing questions · SAT study guide · SAT glossary · SAT flashcards