Say who in the story1) lived in the caravan; 2)loved living there; 3)had lived in the caravan before; 4)clocked the stew in danny^s family; 5)never was unhappy in the workshop.

Nowadays people do not pay much attention to family. They prefer a successful career to a lovely family. Is family still important? Can people live without it? 
In my opinion, family is the most valuable thing that people have. Family members support each other. For some reason, a person can feel unconfident or depressed. Relatives will be there for him/her to help to get through hard times.  They respect each other's decisions and forgive all flaws.
That is why, family is the most important institution.

The red line on this drawing is shorter than other lines.
Красная полоса на этом рисунке короче прочих полосок
2. Mercury is the (smallest planet in our solar system.
МЕркурий - самая маленькаяпланета с Солнечной системе
3. Mathematics is one of the most important subjects at any technical institute.
Математика - одна из самых важных предметов в любом техническом институте
4. This motor works better than the old one.
(Новый)Мотор работает лучше, чем старый
5. The nearer(чаще говорят closer) the Earth, the denser the atmosphere.
ближе к земле атмосфера плотнее