根据对话内容从方框中选择能填入空白处的最佳选项补全对话，其中有两项多余。

A: Look! There are a lot of things in the lost and found box.

B: Yes. 

A: I think it is Lucy's. She has got a green watch.

B: 

A: I think it's Mike's.

B: I don't think so.

A: Let me see. Oh, it's Bob's. Here is his name "Bob".

B: 

A: Oh, it's mine.

B: 

A: I will. Thanks a lot.

A. Whose eraser is this? B. Whose watch is this? C. Here are some gloves. D. Mike's wallet is black. E. Are my crayons here too? F. What about the blue wallet?  G. Please be careful with your things.