| 作者 (Author) | Willems, Mo |
| Summary: Piggie celebrates her favorite day of the year, but Gerald is sad that he cannot join the fun. | |
| 等级 (MML) | MM Level-0.6 |
| 年级 (IL) | Lower Grades (LG K-3) |
| 字数 (Words) | 234 |
| 类型 (Fiction) | Fiction |
| 系列 (Series) | Elephant and Piggie; |
| Topic: Animals-Pigs; Animals-Elephants; Community Life-Celebrations; Interpersonal Relationships-Friendship; | |
