Bysaying“Middlechildrenareinvisible”inparagraph3,Lewismeansthatmiddlechildren。
A.havetohelptheirparentstoservedinner
B.gettheleastattentionfromthefamily
C.areoftenkeptawayfromthedinnertable
D.findithardtokeepupwithotherchildren
正确答案：B文章第三段提到Lewisfoundthatinfamilieswiththreeorfourchildren,dinnerconversationislikelytocenterontheoldestchild,whohasthemosttotalkabout,andtheyoungest,whoneedsthemostattention.可以看出老大和老小都是谈话的焦点，只有中间的孩子是被人忽视的。
