题干
假如你是王磊，现在是周六上午十点钟。请你根据下面的提示跟你的朋友吴海写信描述一下你们全家正在做什么。
提示：1. How many people are there in your family? Who are they? 2. What are they doing? 3. What are you doing? 4. ……
要求：1. 语句通顺、逻辑连贯；2. 60词左右（信件格式已给出，不计入总词数）。
Dear Wu Hai,
……
Yours,
Wang Lei
答案(点此获取答案解析）
Dear Wu Hai, There are four people in my family. They're my parents, my brother and me. It's ten o'clock on Saturday morning now. My father is reading a newspaper, he likes reading very much. My mother is washing clothes, and she's very hardworking. My li
的解集是（-1，2），则
的值是 （ ）