A. I forgot mine.
b. I forgot to take my exercice book.
c. I left my pencil at home.
d. I didn't finish my test.
Mark: Can someone lend me his/her maths book, please?
Juliane: Can someone lend me his/her pen please?
Carol: Can I go t the infirmary, please?
Salut! Est-ce que je t'ai aidé?:D