Is there a general rule for "On" or "In"? I never know whats right. For example you are riding IN a car but leaving "ON" a jet plane (really sitting inside, just like a car).
***NOT A TEACHER***Don't feel discouraged. Just keep reading and listening. Start a notebook. Here in the United States, there are differences: (1) in/on the elevator. People use both. (2) in/on a chair. (3) California: stand in line; New York: stand on line. (4) You live in a "big" island; you live on a very "small" island. (5) On a ship; in a "small" boat. (6) Furthermore, there are differences between the States and the United Kingdom. Thank you.
2006: Sorry for not writing more clearly. I meant to say that one says, "They live IN Cuba" (large island), but "The shipwreck survivors found refuge ON a tiny island." I have also noticed that quite a few years ago, newspapers referred to events ON the West Bank, now it's IN the West Bank. Thank you.