1. A 42-year-old man from Peterborough has wriiten a letter to neighours apologising for the behaviour of his cat.
这里apology为什么是ing的形式。这个是个什么结构啊。
2. Those living in the street have now complained to the local council about the trees being too close to their homes.
being 这里是形容词吗？ 为什么不是are ？