Choose the correct answer
1-My eyes are red because my mother(has cut/has been cutting ) onions,
2-Somebody(has eaten /has been eating ) my cookies, haven't they? There are very few left.
3-My mother(has made/has been making )-------a cake, so the kitchen is steamy.
4.1(have eaten/ have been eating)dinner, so there're plates all over the table.
5-Usually, | study at home, but I(have studied/have been studying)in the library for the last week.
6-A: Are you OK? B: Yeah, I'm fine! I'm not crying I(have chopped /have been chopping) onions !
7-you’ve got white dust all over you! What(have you done /have you been doing )?
8-Your clothes smell awful! (Have you smoked/Have you been smoking)?
I think answering one sentence with explanation may help me understand the difference between the two forms of the present perfect tens ?>