CERTAMENTE / SICURAMENTE

'Certamente' (certainly), 'sicuramente' (surely), 'di sicuro' (for sure) often make a sentence FALSE, but it is not a fixed rule: check the meaning.

Reliability: 100% — in exam questions with "CERTAMENTE / SICURAMENTE" the answer is almost always FALSE

The exam is in Italian: key terms and trap words are kept in Italian, so you learn them.