Here’s the odd one out for each group:

51. **A. earrings** - This is the only item that is primarily an accessory, while the others are not.

52. **A. vegetables** - This is a food category, whereas the others are types of individual items or objects.

53. **A. piano** - This is a musical instrument, while the others are played or used in different contexts (e.g., B. drum, C. guitar is also a musical instrument, but D. music is abstract).

54. **A. presents** - This refers to gifts, while the others are activities or events.

55. **C. firework** - This is an item that is used in festivals, while the others are types of events or celebrations.

56. **D. boring** - This is an opinion, while the others describe actions or observations.

57. **A. wore** - This is a past tense verb, while the others are derived from nouns or adjectives.

58. **A. radio** - This is a device, while the others relate to professions or roles.

59. **B. Egyptian** - This denotes a nationality or ethnic group, whereas the others describe types of cuisine or heritage.

60. **C. science** - This is a field of study, while the others are concepts related to creation or development.

If you have any further questions, feel free to ask!