完成对话，在对话空格中填上适当的单词，使对话完整正确。一空一词(含缩写词)。

A：Excuse me, Jim．Where is my dictionary?

B：Sorry, I don't know．Is it on your 　　1　　?

A：No, it isn't．Here are some books on the desk．Oh, 　　2　　 are my keys? I can't find them．

B：　　3　　 they in your school bag?

A：No, they aren't．Oh, I 　　4　　 my dictionary and keys．

B：Let's go to our School Lost and Found．We can find them there．

A：Who can I ask?

B：Mr．Li is at the School Lost and Found．He can help us to find them．

(They are at the School Lost and Found．)

A：Hello, Mr．Li．I want(想要)to find my dictionary and keys．

C：Hello, boys．Are the keys yours?

A：Yes, they’re 　　5　　．

C：　　6　　 you are．Here is 　　7　　 English-Chinese dictionary．Is it yours?

A：No, it isn't．Look! Here is a name 　　8　　 the dictionary．It's Gina．It's her dictionary．

C：Really?(真的吗?)Please ask Gina to 　　9　　 here and get it．

B：All right．　　10　　 for your help, Mr．Li．

C：You're welcome．