Is she your mother？复数形式

Are they your mothers?
单数改复数时，要将is改are，he、she、it都改成they

---

are they your mothers?

---

Are they your mothers?

她们是你的妈妈吗？

（我觉得这句话MS怪怪的 - -|||)

---

Are they your mothers?
译成：她们是你们的妈妈吗？

---

Are they your mothers?

---