Bjr est-ce que vous pouvez m’aider et m’expliquer. Merci ;). Niveau seconde

2. She has been travelling for 3 months.
She has visited 6 countries so far.

3. He has won the national championship four times.
He has been playing tennis since he was 10.

4. They have made 10 films since they left college.
They have been making films since they left college.