The best time was when I went to Disneyland in Japan. That time remains as my best memory.
Hey Bong Kyu! Thank you for taking the time to do the homework! I'm glad you gave your best to answer the question. Keep it up! ^^
~~Teacher Ryka^^
The best time was when I went to Disneyland in Japan.
>> CORRECT
OR >> The best experience I had was going to Disneyland in Japan.
That time remains as my best memory.
>> That experience remains my fondest memory.