It is wrong... It should say "Cuando nos fuimos de vacaciones todo salió mal."
Eastern<span> region of Cuba , known as the </span>Oriente Provence<span>, </span><span>La región oriental de Cuba, conocida como Oriente Provence,</span>
1. si
2. no
3. no
4. I guess it technically works but something about it sounds off.
5. no, take out the "en parte"