口语运用。 在下列横线上填入合适的单词,使对话完整通顺。 Tom: Good afternoon. Jim: Good afternoon. Tom: 1 are you? Jim: I'm fine, thank you. And you? Tom: I'm 2 .Thank you. Who is the girl? Jim: She is my sister. She is a 3 . Tom: Is she 4 English teacher? Jim: Yes, she is. Tom: 5 is the boy? Jim: He is my brother. He is a student.