例:
1) 彼女はとてもきれいだし、また親切だ。 She is very beautiful, and She's kind, too.
2) 向こうに公衆トイレがあるよ。心配しないで、きれいだし安全だから。 There's a public lavatory over there. Don't worry -- they're clean and safe.
なお、どう違いますか?のほうが正しい。
What is the different between these 3 pattern?
すてき = Cute
美しい = It is beautiful
綺麗いい = Clean it is good
どんな間違えますか = What kind of mistake that you make?
どんな違うんですか? = What is it's different, it is?