一般现在时态练习This is my pencil .(变一般疑问句)

This is my pencil .(变一般疑问句) Is this your pencil?
These red socks are not Kate’s (变一般疑问句) .Are these red socks not Kate's?
I want to buy a big green bag .(变特殊疑问句)
如果划a big green bag ,那么：What do you want to buy?
如果划buy a big green bag ,那么：What do you want to do?
Mary does not have any books .(变肯定句)
Mary has some books.
The clothing shop is on sale .(变为否定句)
The clothing shop is not on sale .
She likes the black bag very much .(变为否定句)
She doesn't like the black bag very much .
I buy the pants for only 50 Yuan.(用she改写句子)
She buys the pants for only 50 Yuan.
It’s an English dictionary .(对画线部分提问)
what's it?
Lily and Lucy are fifteen years old now .(对画线部分提问)
How old are Lily and Lucy now?
10.Her dog is 2 years and 5 months old .(变为否定句)
Her dog isn't 2 years and 5 months old .

你好，同学，很高兴回答你的问题

正确答案：
1. This is my pencil . (变一般疑问句)

Is this your pencil?

2. These red socks are not Kate’s (变一般疑问句) .

Are these red socks Kate's...