This is my tmin sister Lucy .Both she and I_good at drawing.A:am B:are.请问：选那一个,为什么?

This is my friend 和 These are my sist 改成否定句怎么改啊,急... This is my tmin sister Lucy .Both she and I_good at drawing.A:am B:are.请问：选那一个,为什么? 四年级英语专项练习 对划线部分提问:1.I get up at seven.划线词：at seven.2.Mr Black is my English teacher.划线词：Mr Bkack.3.That is her dog.划线词：her.4.This is my sist 《This is my This is my 用所给的介词填空介词：in,on,at,of ,to ,for1.This is the classroom which he studied more than ten years ago.2.The famous player can play two chess games one time.3.He and his twin brother have a lot common.4.I'll come condition that my sist 选出适当的句子补全对话A.Of course,you can.Here you are.B.What's it about?C.Oh,it is really interesting!D.I want a magazine.--What do you want?-1.---How about this one --2.--About all insects like ants.--3.--Can I bring it to my little sist this is my life my This is my This is my THIS is my this is my This is my this is my head my this family is This is my family This is my teacher my this family is this is my grandmother