Respuesta:
2_ IS - ISN'T
3_ DO - DO
4_ DOES - NO, HE DOESN'T / YES, HE DOES
5_ ARE - YES, THEY ARE / NO, THEY AREN'T
6_ IS - YES, SHE IS / NO, SHE ISN'T
7_ DOES - YES, HE DOES / NO, HE DOESN'T
