8老师您好: 还有两个问题我忘了问: 1.两个孩子的申请装一个信封还是分两个不同的信封? -Either. 2.如果装一个信封,证明材料是准备一份还是两份? -Two. 证明材料是不是证明我婚姻真实的文件? -Include it. By the way, because you have divorced, you had better hire a lawyer to help you. 非常非常的感谢!!!