1. He spent his summer vacation in Nha Trang last year.
2. No, it wasn't.
3. He stayed at a friend's house.
4. He took him to see lots of interesting places in Nha Trang such as Cham Temple, Hon Chong, Tri Nguyen Aquarium,...
5. He saw sharks, dolphins, and many different types of sea fish at Tri Nguyen Aquarium.
6. Yes, he did.
7. Minh and his friend went to the beach every morning.
8. He felt happy and healthy after the trip.