急救啊，帮我写几句英文~我自己表达的不地道

I don't know what jobs on marketing I need do?
I'm only a sophomore now though this chance is good.
but my knowedge about marketing is superficial and maybe I have no ability to work.
as well as,I have no enough time to do the full time job.
So,I'm sorry.But I'm at your service if there are other things I can do for you.

i don't know what kind of job on marketing you asked me to do.
now i am just a sophomore . although it's a good chance to me,
my marketing knowledge isn't qualified. maybe i haven't enough ability to do it.what's more ,i haven't sufficient time to do a part time job!

thus,i am very sorry. but i will be very glad if you need my help.

May I know what kind of marketing job that you offer me? I'm only a sophomore. Although this is a good chance for me but my marketing knowledge is not qualified yet, I'm afraid I unable to join the job. Moreover, I have no much time to do