I believe it is a metaphor as falling from cloud 9 was usually used in older movies to express that they had fallen in love
The man said, “I am going to the store.”
Good practices:
Speaking clearly
Standing straight and tall
Controlling your pacing
Speaking with the same volume
Moving your hand often to keep attention
Bad practices:
Looking at your notes the entire time
3rd one is the correct one
Pre- means before, e.g preschool means before school. So a prelude comes before it, or precedes it