Place the verbs in brackets into the future perfect negative tense. View the answers by clicking 'show' at the end.
Note: don't leave a gap after the last word you write in or it will be marked as wrong.
Also, although we often use contractions when speaking (won't go), use the full phrase (will not go).
Our English teacher
(grade) papers for two hours before the lunch break.
(sing) for an hour by the time we arrive at the concert hall.
(lift) weights for 30 minutes before our training session.