Помогите, пожалуйста, решить английский язык

Нужно вставить пропущенные местоимения: who, that, или which в предложения:

1. I don’t know the names of the people___you talked to
2. What’s the name of the hotel___we stayed in last, year?
3. I have read everything___Agatha Christie wrote
4. Thanks for the postcard___you sent us
5. Pierre has a brother___played football for France once
6. We’re taking the train___leaves at 10:15
7. People___always think, about money are sad, I think