Jim is writing to his family’s birthdays on the calender.
Jim is writing his family’s birthdays on the calender.（WRITE是及物動詞，+n.，不用to）
樓上的解釋是錯誤 的此句子的意思是：jim正在把他家的生日寫在日歷上 write to 是 給誰寫 不符合意思的要求
