Образуйте от слова в скобках однокоренное ему слово, подходящее по контексту:
the (good) way to learn a foreign language is to practice every day.​

the best way to learn a foreign language is to practice every day.

if you have a best friend you can always rely on him. if you have trouble, he will always be there and always help.

-our organise wants to   protect the environment.

-we fight against water and air    pollute

-are you unhappy with the ecological situate  in your region?  

-send us some inform about it and we`ll try to help.