将下面句子变成否定句

题目

将下面句子变成否定句
最好可以说下该怎么做?以后我自己也会做了
1.His card is on the table.
2.These are my parents.
3.Bob and Tony are our friends.
4.These things are five dollars.
5.The girl is his sister.

答案

1,His card isn't on the table.
2,These aren't my parents.
3'Bob and Tony aren't our friends.
4.5.
一般的简单句型只要在be动词后面加not,以上修改是用他们的缩写形式.