, 1.- Did Emma go to Sarah’s party?
— She couldn’t. She said she has to/ had to get up early the next day.
2.- Where is Tom?
— He is sleeping. He said he has/had a headache.
3. — Is Bill coming to the cinema tonight?
— Yes. He said he would/will meet us at the main entrance.
4. — Have you seen Nelly?
— Yes. She said she went/was going shopping.
2. had
3. will
4. was
скорее всего так