Поставить прилагательное в скобках в сравнительную или превосходную степень и перевести. with the help of the microscope we can see the (small) structure of matter

the new car is (comfortable) than the old one.Lead is one of the (heavy) metals. This road is the (bad) i had ever seen. Do you think people read (many) books twenty years ago than they do it today?