【题目】根据对话将合适的词填在横线上。
A: Mary. 1.________ my book?
B: 2.________ this your book?
A: No, 3.________ 4.________. May be (也许) it’s Tim’s.
B: Look, your book is over there.
A: 5.________ you.
B: You’re welcome.
【答案】1. Where’s 2. Is 3. it 4. isn’t 5. Thank
【解析】
略
