1) It ... green. a) is b) isn't 2) It ... a dog. a) is b) isn't 3) It ... a train. a) is b) isn't 4) It ... black. a) is b) isn't 5) It ... purple. a) is b) isn't 6) It ... a book.  a) is b) isn't 7) It ... a duck a) is b) isn't 8) It ... a tiger. a) is b) isn't 9) It ... a train. a) is b) isn't 10) It ... green. a) is b) isn't 11) The pencils ... green a) are b) aren't 12) The bananas ... yellow. a) are b) aren't 13) The bikes ... on the car a) are b) aren't 14) The robots ... in the box a) are b) aren't

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