They walked 20 kilometers, so they are exhausted now. → If they………Đoạn văn12/21Rewrite the following sentences as mixed conditionals. They walked 20 kilometers, so they are exhausted now. → If they……… Nhập câu trả lời ở đây0/3000 ký tựGiải thíchIf they hadn’t walked 20 kilometers, they wouldn’t be exhausted now.