3. That box and its contents ushered in a succession of bittersweet memories Expla That box and its contents led to a series of memories which were a mixture of the sweet ones and the bitter ones 4. As I grew older, the gifts gave way to heart shaped boxes Explain: As I was getting older, the gifts were replaced by heart shaped boxes• 3. That box and its contents ushered in a succession of bittersweet memories. • Explain: That box and its contents led to a series of memories which were a mixture of the sweet ones and the bitter ones. • 4. As I grew older, the gifts gave way to heart shaped boxes. • Explain: As I was getting older, the gifts were replaced by heart shaped boxes