The child sat on its mother's lap."小孩坐在妈妈的大腿上",请问一下在这里为什么要用"its"呀?

The child sat on its mother's lap.小孩坐在妈妈的大腿上,请问一下在这里为什么要用its呀? The child _______ on the chair and eating a cake.A.siting B.sitting C.ia sitting D.is sat the cat sat on pam on the front of its blow the bottle on its put the box on its sat 语法题求助,1.Despite research( on the diagnosis of) heart disease and the use of (increasingly) sophisticated technology (in its treatment),the condition of coronary arteries (is) still difficult to assess precisely.可是我觉得its 指代 关于SAT的英语题我觉得这个句子很难理解,是官方指南上的,The Supreme Court’s reversal of its previous ruling on the issue of states’rights------ its reputation for-----.（compromised consistency） 求英语翻译 The mother sat the child at a little table 帮我翻译一下,The mother sat the child at a little table急! Education begins its work with the first breath of the child The child is (on the party)对括号里提问? She g____ patted the child on the head. SAT改进句子题Because the production company failed to properly advertise its upcoming play,their attendance on opening night,being very low,was not surprising.划线部分为：their attendance on opening night,being very low,was not surprisingA 求翻译The brain of a child reorganizes itself in a way that increases its efficiency. they often go to the __Park on Sunday(child) The child is watch a cartoon on TV. Look!Some__(child)are playing football on the ground.