USEFUL SOURCES FOR MY SCRIPT
This website shows the different types of writing flashback in the screenplay.
For my script, my opening is start from the flashback, so I choose to add the flashback after the day or night at the first line.
And finish at the same way.
It’s a little difficult to write the fighting scene, because there are a lot of present ways to write about it. Therefore, this website teach me something basic way to write and it offers the video to explain, which is more easy to understand.