Could you know what is the most natural thing? Hello! What is the most natural thing? 1.A memorable saying in the text of this app is this one. 2.A memorable saying in the text of this app was this one. 3.A memorable saying from the text of this app is this one. 4.A memorable saying from the text of this app was this one. -------------------------------------------------------------------------- P.S. My first title was this one "What is the most natural thing?". But I changed into "Could you know what is the most natural thing?". Because when I try to upload this question, I saw a sentence written as "Please be polite when you ask something " on the right side of this website. So my number 2 Q is how can I ask something in a polite way...? 1. Could you know what is the most natural thing? 2. Do you know what is the most natural thing? 3. What is the most natural thing? 4. Other Thank you! : )