Помогите пожалуйста!! Insert demonstrative pronouns: ( This, that, these, those) 1)__

Помогите пожалуйста!!
Insert demonstrative pronouns: ( This, that, these, those)
1)__ article is easy and __ one is difficult.
2) Pass me ___ magazines. Thank you.
3) ___ boy is fond of music.
4) Who is ___ little girl at the window?
5) ___ books are mine and ___ are yours.
6) Are ___ men over there your friends?
7) ___ flowers are beautiful, aren't they?
8) Leave___ two dictionaries on my table and take ___ books over there to the library.
9) ___ picture is framed and ___ one is not.
10) ___ roof is red and ___ ones are green.