Is he jumping ?, Yes , he is ., No, he isn't ., Yes, she is ., Are they drawing ?, No, they aren't., Yes, he is ., Yes,they are ., Is a duck walking ?, Yes, he is ., No, it isn't ., Yes, it is ., Is she climbing a tree?, Yes, she is ., No, she isn't., Yes, he is ., Is it flying ?, No, it isn't ., Yes, it is ., Yes, the are .

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