题目

阅读理解 Found Thing：Watch Color：Black Name：Cindy Telephone number：359­5934 Lost I'm Linda. I lost a yellow ring. Please call Bill or me.My phone number is 485­3982. Bill's telephone number is 683­5912 Found Is this your jacket? It's a red jacket.And an ID card is in it. My name is Mike.My telephone number is 239­5178. 1.Cindy found a（n）______． A．watch           B．ring          C．jacket        D．ID card 2．______ lost a ring. A．Cindy           B．Linda         C．Bill          D．Mike 3．What's Mike's telephone number? A．357．设U=R，A={x|x≤1}，B={x|-1≤x≤2}，求CuA，CuB，A∩B，A∪B．