Learn Italian: La prova è difficile, ma sono pronto. - The test is difficult, but I am ready.

While many Italian adjectives end in -o for masculine and -a for feminine, some adjectives end in -e in their singular form. These -e adjectives (like difficile) are the same for both masculine and feminine words. They only change to -i when they become plural.

Why isn't there an io (I) before sono pronto?

In Italian, the subject pronoun (like io) is usually dropped because the verb itself already tells us who is doing the action. Sono specifically means "I am", so the io is naturally understood. You only need to add it for extra emphasis, such as "ma io sono pronto".

How do we know the person saying this sentence is male?

We know because of the adjective pronto. Adjectives ending in -o change to match the gender of the person or thing they describe. If a woman were saying this, she would change the ending to match her own feminine gender and say "ma sono pronta".

What is the difference between la prova and l'esame if they both mean "test"?

La prova is a broad word that can mean a test, a trial, a challenge, or even a rehearsal for a performance. L'esame is more specific and usually refers to a formal academic exam at school or a medical check-up.