Answer
experience would say that it is better to use different key words to represent pretest and post test loop structures.
Work Step by Step
-This has proven to be a problem with the C language.
-When the do and while key words are separated by several lines, readers of a program often stumble over the proper interpretation of a while clause.
-In particular, the while at the end of a do statement is often interpreted as the beginning of a while statement.
-Thus experience would say that it is better to use different key words to represent pretest and post test loop structures.