Did he read this book last week?如果回答是,那可以是 Yes,he did.

题目

Did he read this book last week?如果回答是,那可以是 Yes,he did.
Did he read this book last week?
如果回答是,那可以是 Yes,he did.或者其他简略回答
而不仅仅是 Yes,he read this book last week.

答案

可以是 Yes,he did.
因为问句是以did 开头的,所以回答的时候,也应该用did.（当然,否定就用didn‘t）