... big city are supposed to make a special effort to make life tolerable. D) it isn't pleasant to have some responsibilities for others' comfort. E) although we have some difficulties, ... support, to back To watch out for: To be careful, to be cautious for Alert: Watchful, aware, attentive > EXERCISES Complete the sentences with a suitable form of the words defined above. ... big city are supposed to make a special effort to make life tolerable. D) it isn't pleasant to have some responsibilities for others' comfort. E) although we have some difficulties,...