Is this your pen? Yes, it is., Is this your pen? No, it's not., Is this your pencil? Yes, it is., Is this your pencil? No, it's not., Is this your marker? Yes, it is., Is this your ruler? No, it's not., Is this your book? Yes, it is., Is this your eraser? No, it's not.,

WW3-U3-句型練習-intermediate

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