请问如何用”同位语”改写下列2个句子?

问题描述:

请问如何用”同位语”改写下列2个句子?
1、The bridegroom was a boy of 15.
The bridegroom did not know how to put the ring onto the bride's finger.
2、The Fresh Air Association is a local organization.
The Fresh Air Association has done a lot in improving people's health in recent years.

1.The bridegroom(that) a boy of 15,did not know how to put the ring onto the bride's finger.
2.The Fresh Air Association (which) is a local organization,has done a lot in improving people's health in recent years.