Review the item:
The telephone __________ twelve times before Pablo finally lifted the receiver. He prayed the call was from a salesperson and not his psycho ex-girlfriend Maria.

The blank requires the simple past of ring, an irregular verb. Rang is the simple past form.

Verb Simple
Present
Simple
Past
Past
Participle
ring ring(s) rang rung

Rung, the form you chose, is the past participle. This form requires an auxiliary verb which the sentence does not provide. Before you continue, review the rules for irregular verbs.

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