Final answer:
Gregor's mother struggles with work due to exhaustion from labor-intensive jobs, language barriers with English as her second language, and limited access to technology for educational support.
Step-by-step explanation:
Gregor's mother finds work difficult because she is physically and emotionally exhausted from long hours of labor-intensive jobs. Additionally, having English as her second language poses a challenge when trying to support and understand her son's educational materials. This combination of her own tiring work schedule, limited language proficiency, and lack of technological resources at home makes it difficult for her to provide the necessary support and encouragement her son needs for his education.