Praktiline inglise keeles

I need a practical solution to this problem.
Vajan sellele probleemile praktilist lahendust.

This is a very practical approach to the situation.
See on väga praktiline lähenemine olukorrale.

I'm not sure if this is practical, but it's worth a try.
Ma pole kindel, kas see on praktiline, kuid tasub proovida.

I need to practice my English.
Ma pean oma inglise keelt harjutama.

I have been practicing the piano for two hours.
Olen kaks tundi klaverit harjutanud.

She is a good practice for me.
Ta on minu jaoks hea tava.