Пожалуйста помогите мне перевести следующие предложения:
1. The low returns of the pension funs, the aging population, the fixed pension age, the high unemployment and the low fertility rate will contribute to the collapse of the social secuiry system.
2. The old building collapsed
3. They have demolished the old hotel with controlled exposions.
4. We should find ways to preserve our courage in this difficult times
5. They government should give motivations to preserve the environment.
6. There are many ways to conserve energy and save money
7. She conserves (economically) her old mother.