根据句意写单词1.Yourfather'sfatherisyour[]2.Yourfather'smotherisyour[]3.Yourfather'sbrotherisyour[]4.Yourfather'ssisterisyour[]5.Yourareyourparents'[]or[]6.Youruncle'schildisyour[]句型转换1.Thisismybook.[改为复数形式]2.Thatisapencil[改为复数形式]3.Thesearehiserasers[改为单数形式]4.She'sKim'saunt[改为复数形式]5.Isthisyourgrandfather?[作肯定回答]6.IsMaryhissister?[作否定回答]