阅读理解, 判断正误。

Lily: Look! This is my family picture.

Mike: Who's this man?

Lily: He's my father.

Mike: Who's this woman?.

Lily: She is my mother. She's a teacher.

Mike: Is this your sister?

Lily: No, it's me! That girl is my sister.

Mike: Is this your brother?

Lily: Yes, he's a baby.

Danny: Good morning, Jenny.

Jenny: Good morning, Danny.

Danny: Oh, Jenny , this is my sister Kate. She is a teacher.

Kate: Nice to meet you ,Jenny.

Jenny: Nice to meet you , too, Are those your students?

Kate: Yes , they are.

Jenny: And , Who is he?

Danny: He's my brother, Jack.

Jenny: Oh, I see. Well, have a good day!

Jenny\Kate: Thanks! You , too . Bye!

计算：2x³•（﹣3x）²的结果等于____

牵挂是一份宝贵的精神财富。有了妈妈的牵挂，朴素平凡的生活便溢满了温馨的记忆；____，____；____，____。