A: Only if you use them actively. Never copy without understanding. After checking, cover the answers and redo the exercise the next day.
Do not look at the answer before writing your own. Cover the solution page with a piece of paper, complete the exercise, and only then uncover the answers.
If I had studied harder, I would be in London. If I spoke better, I would tell him how I feel.
The course follows a gradual progression (Levels A1 to B1/B2, with extensions to C1) and is designed with a bilingual approach to help Italian students draw parallels between the two languages. unit 27_web - Zanichelli
Each chapter includes clear explanations followed by multiple esercizi (exercises) designed to reinforce rules through contextual practice.