There be 单复数求解释

red1358

Manhattan review: There ARE a young man and an older woman at the bus stop.
There is a girl, a boy and two women in the house.

There be的单复数是就近原则么？那为什么第一句是ARE 而不是 IS 呢？
还是说主语是a young man and an older woman所以是复数？
那第二个句子主语是a girl, a boy and two women不也是复数么？

求解释，以防考试时混淆。谢谢

448258130

第二句不对吧