Образуйте сущ. при суффиксов -ness. пример: (Happy - happiness)​

i never have to go the library. or:

i don't have to go library frequently.

golden

wattle

1.to test

2. -

3  to apply

4  to require

5   to fail

6  to fail

-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.