2道超简单词性转换，为什么？谢！
3.Most single parents find it very difficult to take care of a family alone, so they soon marry again and from______(married)families.4.Today______(school)children say go to a child center or to a baby-sitter regularly because the mother works.1，remarried 2,preschool ,为什么？句子什么意思？谢谢赐教！
参考答案:1，remarried
再婚
大多数单亲父母认为一个人照顾家庭是非常困难的，所以他们很快就再婚组成再婚家庭
2,preschool 学前，就是小学以前的
现今学前儿童定期去儿童中心或者儿托班都是因为他们的母亲参与了工作。