Multiple choice

The war with Germany, incident on that country's seizure of the Samoan Islands, had left no visible scars upon the republic, and the temporary occupation of Norfolk by the invading army was forgotten in the joy over repeated naval victories, and the subsequent ridiculous plight of General Von Gartenlaube's forces in the State of New Jersey.

  1. and the temporary occupation of Norfolk by the invading army was forgotten in the joy over repeated naval victories

  2. and the temporary occupation of Norfolk by the invading army were forgotten in the joy over repeated naval victories

  3. and the temporary occupation of Norfolk by the invading army had been forgotten in the joy over repeated naval victories

  4. and the temporary occupation of Norfolk by the invading army, forgotten in the joy over repeated naval victories

  5. and the temporary occupation of Norfolk by the invading army in the process of being forgotten in the joy over repeated naval victories

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The sentence refers to a past incident - (the war with Germany) - and also goes on to assert that the occupation was already forgotten so the best construct to use would be the past perfect passive. Hence (3).