Ответ:

2) Diane said that she is enjoying her new job.

3) Betty said that she isn't hungry.

4) Martin told him that he'll send him a postcard.

5) Mary said that she is going to the cinema.

6-12 хз как сформулировать, извиняюсь. До такого уровня еще не доходила, разобраться надо.