有過去式既問題想問問

Sorry, you are wrong!

Correct one: Have you taken a course on design before?

Because you are asking the things in the past but affecting the things happening now. Therefore, you CANNOT use "simple past" but you should use "present perfect"

Did you take a course ==> Talking about a specific time so cannot use it here

HOPE I CAN HELP YOU ^_^

其實用 simple past 或者 present perfect 就視乎於前文後句, 如果淨係講一句句子就無咩所謂

不可以,我個人認為要用現在完成式, 因為有before的出現,所以應該是:

Have you taken a course on design before?

絕對無問題,因為你用對了用過去式問問題

問人過去既野用過去式咁無問題架!!