regression problem using python

I want to do a regression problem to specified Training and Test set, It includes some missing data.
I have done it and submitted 70% R2 score.
so anyone can do it better can request
this is a link for files : https://wetransfer.com/downloads/c60daf1fb0f1445eb775bb067bbc718e20210628205119/f154eda59529e0f442854c6f76452a0220210628205119/4cbde3