Which of the following would be a helpful open-ended question for you to ask after someone has read your paper?
a. What do you like best about my introduction?
b. Do you like my introduction?
c. Do I need to improve my paper?
d. Do you like this draft?
"A" is probably the best choice. All of your other choices are close-ended questions, and can only be answered with a simple yes or no, But "A" is an open-ended question because the answer wont be just a "yes" or "no".
