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1) Is it ...2) Is It...3) Is she...4) Is he...5) Are they...6) Are the pupils...7) Is Ivan...8) Are we...1) Are they...2) Are the hats...3) Is mum...4) Are mum and dad...5) Is Marina^s bike...6) Is the crocodile...7)Are the crocodiles...8) Are the frogs...9) Is the frog... 10) Are we...