According to paragraph 2, parents in Mongolia feed their47/48According to paragraph 2, parents in Mongolia feed their child's lost tooth to a dog because ______.they believe that this will make their child's new tooth good and strongthey hope that their child will get some gifts for his or her tooththey know that dogs are very responsible animalsthey think dogs like eating children's teethGiải thíchĐáp án AGiải thích: Dẫn chứng nằm ở dòng số 4 của đoạn 2.