从方框中选择适当的选项补全对话，并将其字母标号填在横线上。其中有两项是多余的。
Joe: Look, Mary! What is that?
Mary: Where?
Joe: 【小题1】
Mary: Oh, it’s a schoolbag. It looks very nice.
Joe: Yes, that’s right. Whose is it?
Mary: 【小题2】
Joe: Lily, 【小题3】
Lily: Let me have a look. Oh, no. It’s not mine. Mine is old, but this one is new.
Joe: Ann, is this schoolbag yours?
Ann: No, it’s not mine. Mine is red,   【小题4】   I think it is Jim’s.
Joe: Jim, is this your schoolbag?
Jim: Yes, it’s mine.
Joe: Here you are.
Jim:   【小题5】 
Joe: You’re welcome.