Об­ра­зуй­те от слова DANGER од­но­ко­рен­ное слово так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Highways have changed the way Americans live. While highways may have improved travel in some ways, they have also caused many problems. Highways are bad for the environment. Today, more than 244 million cars travel on highways and burn gasoline, which creates air pollution. Highways are always _________________. Cars often travel at high speeds on highways. It is easy for accidents to happen..