Hi, I have put a number with each sentence to help show where the corections are.

1)in the morning,my manager talking with me .

2) she say that which is my responsibility,and how i should to do ?

3) that is our second talking,i konw my work is simple but not easy ,so i will try to do best
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4)i don not konw say some thing ,

5) i get off work after two hours and 15 minutes

So with this note, I understand most of it, but some of the ordering is not quite correct.

I would write it like this:

1) In the morning my manager talked to me.

3) That was our second time talking. I know my work is simple but it is not easy, so I will try to do my best.

4) I do not know how to say some things.

I hope this is helpful.

:)