题目

补全对话 根据对话情境，用适当的句子补全对话。 A：Hi，Kate！ 1.________________？ B：It is a photo of my family. A： 2.________________？ B：He is my father. A： 3.________________？ B：Yes，he is. He is my father's brother. A： 4.________________？ B：His name is Jack. A： 5.________________？ B：Yes，they're my uncle's son and daughter. 答案：1.What's this 2.Who is he 3.Is he your uncle 4.What's his name 5．Are these your cousins解下列方程：（1）4（x-2）2=（x+1）2（2）x2-x-6=0．