Student or Learner
what is the difference between did u work today or have you worked today
You have made 68 posts according to your profile. I think by now it is reasonable for us to expect you to know and use the following:
1) Correct spelling of "grammar"
2) A capital letter at the beginning of a sentence
3) Use of "you" not "u"
4) Enclose the phrases that you are querying in quotation marks or italicise them
Please repost your question.