1. (2023三下·期末) 选择正确的答案。

A:Is it under your chair?      B:Bye, Mum. C:No, it isn't. D:Mum, where is my bag? E:Good morning, Mum.

Mike: 

Mum: Good morning.

Mike:  

Mum: Is it in your desk?

Mike:

Mum:

Mike: Yes,it is.Thanks.

Mum: Goodbye.