Before he had come (A) back home (B), Jack had visited (C) his uncle (D).Đoạn văn4/40Choose the underlined word or phrase in each sentence that needs correcting. Before he had come (A) back home (B), Jack had visited (C) his uncle (D).Nhập câu trả lời ở đây0/3000 ký tựGiải thíchĐáp án là A.