题目

完形填空 ,阅读下面对话，从A、B、C、D四个选项中，选出最佳选项。A: Good morning, Grace. Look!    1    is a photo.B: Oh! It’s a(n)    2    photo. Is it your family, Frank?A: Yes! Can you see me in the    3   ?w B:    4    the boy you?A: Yes.B: Are these your parents?A: Yes,    5    are.B: Who is the    6   ?A: She is my sister.B: Is the tall (高的) boy your brother?A: No. He is my uncle’s son. He is my    7   .B:    8    his name?A: Eric Green.B: What’s his    9   ?A: It’s 457-145.B: Oh, I see. Well,    10�分解因式：2x2－8＝_______．