Hello Patty! ^^ Thank you for submitting your homework today. Kindly take note of the corrections that I made. Thank you! ^^

Patty: I went to the beach for swim in jeju.
Correct:  I went swimming in the beach  of Jeju Island.  

2. I rode a pony two times. -Correct

Patty: I saw a dolpin and momkey and elephant show.
Correct: I saw a dolphin, a monkey and an elephant show.

4. I rode a submarine. -Correct
5. I swam in the hotel. -Correct