为什么in your grandparents’room的grandparents要在s的后面加一撇?不是在s后加一撇吗?为什么?急

you enjoy your stay in HangZhou.为什么用your? It's rude to put your hands in your lap.为什么用in 而不用on? It is rude to put your hands in your laps.为什么要用in? in your in your 英语翻译我妈妈通常用糖果招待这些小朋友.My mother usually _____ these children a _____ _____ some _____.(3个空）你生日通常是谁给你买礼物?我爷爷奶奶.Who usually _____ _____ _____ you for your birthday?My grandpare 英语翻译Hi,everyone!I’m Cendy.I live in Nanhai.I’m 13 years old.I am tall and thin.Now,let me tell you something about my family.There are seven members in my family.They are my grandparents,my parents,my sister,my brother and me.My grandpare Is it someone in your family?为什么用someone Who is _____(bad) at drawing in your class?为什么? Does your pen pal live in Beijing?为什么用Does? I hate to be in your shoes怎么解释,为什么? Afall into the pit,a gain in your wit.为什么?Afall into the pit,a gain in your wit.为什么, What will your aunt buy you ( ) your 12th birthday?为什么不能用in? your clothes and shoes take less room in your bedroom.请问为什么用 take?不用cover? Is this book in your schoolbag?(改为肯定句）为什么不把YOUR改为MY what is your favorite place in your neighborhood?为什么不用where而用what Finish the work at your ease,in your own timeFinish 为什么不加ING? 你家里谁做饭.这个英语句子应该是.Who cook in your family?还是 Who cooks in your family?为什么?