选用括号中适当的代词填空。
1. Is this _____ eraser? (he, his)
2. Is _____ (she, her) Mrs Li ? Yes.
3. That's _____ (my, I) pencil.
4. Is that _____ (you,your) dictionary? No, _____ (it, its) isn't.
5. Can _____ spell _____ name? (you, your) Yes, _____ (I, my) am.