九年级英语句型转换whose guitar is this?会的人请尽快,

问题描述:

九年级英语句型转换whose guitar is this?会的人请尽快,
A:whose guitar is this?     B:whose is____  ____
A:why don't you keep an English diary?        B:why ____ ____ an English diary?

Whose is this guitar?
Why not keep an English diary?