present perfect tense tolong ya kak no 3, 4 dan 5

4. (+) I have written ten books
( - ) I have not (haven't) written ten books
( ? ) Have i written ten books?
5. ( + ) the picture has fallen down
( - ) the picture has not (hasn't) fallen down
( ? ) has the picture fallen down??
kalu yang nomor 3 masih bingung
kalu gak salah jawabanya kurang lebih seperti itu