求下列动词的过去式和过去分词答:过去式 discussed,made,collected,had,taught,found,interviewed,cycled,polluted,left,ate,spent,,planed,cost,put,finished,arrived 过去分词 discussed,made,collected,had,taught,found,interviewed,cycled,polluted,left,eaten,spent,,planed,cost,put,finished,arrived 加油哦!我猜你是六年级吧!呵呵~~~...