讲下列句子变为负数句
问题描述：
讲下列句子变为负数句
1She is my sister
2That is a ruler
3 I an a girl
写出负数形式
1 mother 2father
3this 4sister
5 brither 6 is
答
They are my/our sisters.Those are (some ) rulers.We are girls. 1.mothers; 2.fathers; 3.these; 4.sisters; 6.brothers; 6.are