Ответ:
1. I have eaten an apple recently.
Have I/you eaten an apple recently?
I haven't eaten an apple recently.
2. My grandmother has lived in this town all her life.
Has my grandmother lived in this town all her life?
My grandmother hasn't lived in this town all her life.
3. Jack has finished his homework.
Has Jack finished his homework?
Jack hasn't finished his homework.
4. Susan has been in Canada.
Has Susan been is Canada?
Susan has not been in Canada.
5. Mary and Jane have written three letters already.
Have Mary and Jane written three letters already?
Mary and Jane haven't written three letters already.