linda made a nice cake to celebrate her mother mother's birthday,celebrate her mother mother's birtcelebrate her mother mother's birt画线提问

问题描述:

linda made a nice cake to celebrate her mother mother's birthday,celebrate her mother mother's birt
celebrate her mother mother's birt
画线提问

请问你的意思对这部分【celebrate her mother mother's birthday】划线提问?
如果是的话,那回答如下:
Why did Linda make a nice cake
What did Linda make a nice cake for?
Why=What for:为什么