They are Liu Tao, Liu Tao's family members,
Bobby and Sam./They are Liu Tao and his
grandfather, grandmother, father, mother,
uncle, aunt, cousins, brother, Bobby and
Sam.
They are at Liu Tao's grandparents' home.
他们是刘涛、刘涛的家庭成员、博比和萨姆。/他们是
刘涛和他的祖父、祖母、爸爸、妈妈、叔叔、婶婶、
堂弟、堂妹、弟弟、博比和萨姆。他们在刘涛祖父母
的家里。 (答案不唯一)