2º A am, B is, C is, D are, E is, F are, G are, H is, I are, J are.
3º A She isn't ..., B They aren't..., C We aren't..., D I am not..., E He isn't ..., F You aren't..., G It isn't..., H Peter and I aren't..., I Jane and Susan aren't..., J They aren't...
1º A are, B am, C is, D is, E are, F is.
2º A am, B is, C is, D are, E is, F are, G are, H is, I are, J are.
3º A She isn't ..., B They aren't..., C We aren't..., D I am not..., E He isn't ..., F You aren't..., G It isn't..., H Peter and I aren't..., I Jane and Susan aren't..., J They aren't...
4º Is, Are, Am.
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