)1. he realized that they (lost / had lost) their way. 2. he says he (has / had) agood camera now. 3. ann said that she (is going / was going) to learn to drive. 4. he explained that he (stayed / had stayed) at home the day before. 5. my friend says he (has just returned / had just returned) from london.

1. He realized that they had lost their way.
2. He says he has a good camera now.
3. Ann said that she was going to learn to drive.
4. He explained that he had stayed at home the day before.
5. My friend says he has just returned from London.