My answer is "it is important that he leaves to america". Why do you think that is wrong...?
goes/travels is pergi,
leaves is meninggalkan.
Penting bahwa dia pergi ke Amerika = it is important that he goes to America = it is necessary that he travels to America.
Why do you think it's wrong?
Saya jawab seperti itu hasilnya benar, sudah diperbaiki
Not including "it's" .