Read the passage and choose the correct answer to each of the following questions One of the biggest

Đáp án: They were used to communicate with reserve forces and (to) keep in touch with family members living outside Jinjuseong Castle.
Dịch nghĩa câu hỏi: Những chiếc đèn lồng được sử dụng để làm gì trong trận chiến Jinjuseong năm 1592?
Giải thích: Thông tin nằm ở câu: “During the Jinjuseong battle of 1592, lanterns were used as a means of communicating with reserve forces and also a way to keep in touch with family members living outside Jinjuseong Castle”.