根据短文内容判断下列句子的正(T)、误(F). This is Barack Obama.He is the president(总统)of the United States.His wife(妻子)is Michecle Obama.They have two daughters.Malia Obama is eleven years old.Sasha Obama is eight years old.They have a happy family. ( )1.Barack Obama is Chinese. ( )2.Malia's mother is Michelle. ( )3.Barack Obama has a son and a daughter. ( )4.Michelle Obama has two daughters. ( )5.Sasha Obama is only 9 years old.