根据提示填空(每空一词)
My uncle lost his ID card yesterday morning. ____ (luck), a schoolboy found it and sent it back to him in the afternoon.
答案
Luckily
知识点:副词的用法

句意为“我叔叔昨天上午弄丢了他的身份证。幸运的是,一个男学生下午捡到了并把它归还给了我叔叔”。“幸运”用来修饰整个句子,要用其副词形式luckily,注意首字母大写。

略
