this is my eraser.(改为一般疑问句) Is it a pencil?(做肯定回答)

this is my dictionary.(改为否定句形式)
It's a pencil.(对a pencil提问）
my teiephone number is 5554327。（对号码提问）
( )
It’s a sharpener。（根据回答写问题）

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Is this your eraser?
Yes,it is.
This is not my dictionary.
What is this?
What is your teleplone number?
What is this?

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This isn't my dictionary.
What's this?
What'棚拍卜链穗贺拿s your telephone number?
What's this?

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