Finally ,she decided to send him away
Finally,she ( )( )( )to send him away
Finally ,she decided to send him away
Finally,she ( )( )( )to send him away
Finally,she made a decision to send him away.
动词decide等于短语make a decision。
Finally,she (made )( a)(decision)to send him away
最后,她做了把他送走的决定
decide to do =make a decision to do
因为前面是过去式,所以make改成made