正文： 

1、Is this your pen?

Yes,it is.

2、Is this your pencil?

Yes,it is.

3、Is this your book.？

Yes,it is.

4、Is this your watches？

Yes,it is.

5、Is this your coat?

Yes,it is.

6、Is this your dress?

Yes,it is.

7、Is this your skirt?

Yes,it is.

8、Is this your shirt?

Yes,it is.

9、Is this your car?

Yes,it is.

10、Is this your house?

 Yes,it is.

 

含有 be 动词的简单的陈述句，否定句，一般疑问句。

陈述句：This is my handbag.

含有 be 动词的句子如果变否定句，就是在 be 动词后面加 not

否定句：This is not my handbag.

含有 be 动词的句子，如果变成一般疑问句，就是把 be 动词提到句子的前面，大写

疑问句：Is this your handbag?