问答题 1.  The business of continuing the family lineage(血统) and keeping the bloodlines pure is often too important to be left to romance and chance encounters. (Passage One)
【正确答案】 传宗接代，维系家族血统纯正通常是极为重要的，不能由浪漫和偶遇支配的。
【答案解析】 Too important to be left太重要了而不能忽视。