[شذى للكون]

ممكن من اساتذتي الافاضل الرد على هذة الاسئلة ولكم مني جزيل الشكر
find the mistake
1/it is not Dalia i mind her:it is her sister ,Dina I do not like

2/?where is the pen I have just put it on the desk

3/?who responsibility is to lock the department store when work is over


choose

1/ she got married to a professor a year she graduated from university
1/in which
2/when
3/ before
4/ for which