（重写句子） My sister went to Tokyo for a holiday. She could not retu

（重写句子） My sister went to Tokyo for a holiday. She could not return home. She did not have enough money left for a plane ticket. (long sentence)
【正确答案】：My sister, who went to Tokyo for a holiday, could not return home because she did not have enough money left for a plane ticket. // My sister, who went to Tokyo for a holiday, could not return home, for she did not have enough money left for a plane ticket.