把下面2个句子用in order to 连接合并一个句子.My mother exercise every day.She wants to keep fit.

My mother exercise every day in order to to keep fit.

My mother exercises every day in order to keep fit.

in order to keep fit my mother exercises every day.

My mother exercises every day in order to keep fit.
这里的 exercise 是动词，My mother 作主语，要用第三人称单数，所以要在其后加上s。

My mother exercise every day in order to keep fit.
in order to 表示目的,“为了”

My mother exercise every day in order to keep fit .