Rules help us live together in a community. At my local park, there is a sign that reads, “Keep off the grass.” Because our community has a need for a nice green space     1     (relax), we are expected to keep our park clean and in good condition for everyone’s enjoyment. If one person breaks the rules, more people     2     (follow) him and do what they want. In a community, rules are in place to protect everyone. What we do and     3     we act affect everyone, not just ourselves. We need rules in order to live     4     (safe).