Rule reminder
IMPORTANT: With avere as auxiliary, the past participle NEVER agrees with the subject. It is always invariable: -ato, -uto, -ito. WRONG: 'Ho mangiata la pizza'. CORRECT: 'Ho mangiato la pizza'. WRONG: 'Abbiamo comprati i libri'. CORRECT: 'Abbiamo comprato i libri'.
Which sentence is CORRECT?