按要求写句子。 1. They checked their birthday on by one.(写出问句) _ 2. They were in school.(改为一般疑问句) ___ 3. My mother gave to me two storybooks.(改为否定句) ____ 4. My birthday is September 4th. (就划线部分提问) ____ 5. He walks to school every day.(用yesterday代替 every day)