把下列两句分开的英语句子连接在一起

1.My uncle is getting married.He's thirty-three.
My uncle who's thirty-three is getting married.
2.They visited an area of the desert.It only rains there once a year.
They visited an area of the desert where it only rains once a year.
3.Mother Theresa died when she was 85.She helped poor people all over the world.
Mother Theresa,who helped poor people all over the world,died when she was 85.

顺序是3,2,1

1. My uncle, who is thirty-three, is getting married.
2. They visited an area of the desert, where it only rains once a year.
3. Mother Theresa, who had helped poor people all over the world, died when she was 85.