【答案解析】In my opinion, a good neighbor should be trustworthy. A neighbor always has some knowledge about what is going on in the four boundaries of a house. This is because he lives so close to you; he can hear your voice, see your appearances, observe who comes to your house and who goes at what time. Basically, a neighbor can gossip about half of the things happening in your life, and that is where the quality of a good neighbor comes in. A good neighbor should be trustworthy and sensible enough to not leak out others' family secrets.