Is that his sister?肯定回答一.根据句意和汉语意思或首字母提示完成单词（1）Sally and Alice are my ____(舅妈）。（2）Your father is brother is your u_____。1.who is the girl in the p_____2.H_____ are two books for you，

Is that his sister?变为复数句 that is his sister改为复数形式 His sister,always is his sister. his sister is This is his sister and that is his son.怎么改为复数形式 That is his parents That is his sister This is my brother These are my friend 以上改一般疑问句 Is that ( ) your sister This is his sister and that,s his son.怎么改为复数形式 she is his sister,helen. is this your father?否定回答 that is his sister?复数句 Is that girl his sister?（作肯定回答） Is helen his grandmother?（作否定回答） His sister is from Canada.(对Canada提问) ( ) his sister ( )? that,his,biue,the,sister,girl,is,in,T-shirt组成一句话 Is that your sister?,回答 ( )（）is his sister?she is ( ). ( )（）is his sister?she is ( )（）. tom is ten.His sister is five. The girl (that/which) we saw yesterday is his sister.限定性定义从句可以用which代替that吗