Question

 помогите  может для вас не трудно..

2 Make adjectives from the nouns in brackets and fill in the gaps. 1.    At the meeting they discussed ... problems, (ecology)
2.    Are there any ... subjects in your school? (option)
3.    Yekaterinburg is one of the biggest ... centres in Russia, (industry)
4.    I had a ... letter from Mr Smith last week, (person)

Answer 1

1) Ecological - экологические 
2) Optional - факультативные
3) Industrial - промышленный
4) Personal - личное