关于of的疑问
问题描述：
关于of的疑问
Some children are coming out of the building.
Some of them are ging into the park.
上面两句话为什么coming out of the building中间有of,而ging into the park中间却没有of
ging==going
答
out of 是个 短语介词 = from
这两句话的介词 是根据句子意思 决定的