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---Is this your ruler?---No, it isn’t. It’s ________.
–Is this your ruler? – Yes, it’s ________
A. my B. mine C. hers D. his.
--- Is this your white ruler ? --- No. _______ is yellow.
A. My B. Mine C. Her.
---Is this your ruler?
---No, it isn’t. It’s ________.
A．he’s B．her C．his D．she
Her.