there are a number of reasons that mean that recycling is not done as effectively as it could, the primary problem being the attitude of the general public. 第一个that是引导什么从句,第二个that是引导什么从句,逗号后面为什么用动名词being,
那后面的being是现在分词形式,不是动名词是么
追答不是,动名词是起名词作用的,这里的being是表示这一小部分里的动作的词(如果是句子,就是谓语了),后面接有表语,所以是现在分词,不是动名词。