问题详情：
补全对话。
根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。
(Sally finds a schoolbag on the playground. When she picks it up，she sees Linda coming to her.)
Sally: Excuse me. 1 ？
Linda: No，it isn't. Mine is in the classroom.
Sally: 2 ？
Linda: I'm not sure. Maybe it's Kate's. She is looking for her schoolbag.
Sally: 3 is red，but this one is blue.
Linda: Let's see what is in the schoolbag. Oh，there is a hair band in it.
Sally : 4 a has long hair，and she always forgets things.
Linda: There's also a table tennis ball in the schoolbag.
Sally: Then it must be Sonia's. She is on the school table tennis team.
Linda: We'll give it to her. 5 ？
Sally: She is in the library.
Linda: OK. Let's give it back to her.
【回答】
1. Is this your schoolbag/Is this schoolbag yours
2. Whose schoolbag is it
3. It can't be hers/It doesn't belong to her
4. It could/may/might belong to Sonia
5. Where is she
知识点：补充句子
题型：补全对话
