Complete the sentence below by supplying the correct form of the verb for the blank space.
Answer:Before the manager arrived at the office yesterday morning, the receptionist 【had typed】 all the official documents.
Answer
had typed (or any valid past perfect verb form such as had prepared / had printed)
The past perfect form (auxiliary 'had' + past participle) is required because the action of preparing or typing the documents took place prior to another completed past event indicated by 'arrived'.
Step-by-Step Solution
Key Concept
Past Perfect Tense for Preceding Actions