求这句英语的主谓宾
问题描述：
求这句英语的主谓宾
you will find concentrating on active and useful words the most effective route to enlarging your vocabulary.
答
you（主）will find（谓）concentrating on active and useful words（宾） the most effective route to enlarging your vocabulary（宾补）.你会发现,专注于那些活跃而有用的单词,是扩大词汇量的最有效的途径....