Dick's grandparents need a good sleep.为什么填 need a good sleep?

Dick's grandparents need a good sleep.为什么填 need a good sleep? 用 be 的适当形式填空.1.Those___________his grandparents.2.That_____________my sister.3.Dick and Joy____________my friends.4.My brothers__________________Miss Li’s students. Who's Dick's brother?What is Dick looking at? Dick How is your dick's hair style? grandparents grandparents I thank it's in your grandparents' in your grandparents`s room汉语是什么? These are Alice's grandparents.（Alice's grandparents划线提问）who are they? Dick's mother works _in a factory_.谁会教教me. （ ）father is in Beijing.A.Dick's and Nick B.Dick and Nick's C.Dick's and Nick's D.Dick and Nicks'快,明天要交! Don`t_in_.Dick,It`s bad for your_. 为什么parent不加''s''而grandparents要加''s''? Look,it's my ___ carA.grandparents' B.grandparents C.grandparent Dick's computer 【doesn't work】.（对划线部分提问） ____ _____ _____ _____ with Dick'scomputer? I met a friend of _______yesteeday.(Dick`s mother/Dick`s mother`s)请符上你选哪个答案的理由,谢谢!答案是Dick`s mother`s,我不明白了 ___ruler is this lt's___.A.Who's ;Dick B.Who's ; his C.Whose;Dick's D.Whose;he's