1) Is it a ruler? a) Yes, it is. b) No, it isn't. 2) Is it a book? a) Yes, it is. b) No, it isn't. 3) Is it a rubber? a) Yes, it is. b) No, it isn't. 4) Is it a desk? a) Yes, it is. b) No, it isn't. 5) Is it a door ? a) Yes, it is. b) No, it isn't.

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