помогите пожалуйста с домашкой по английскому! 5,6 номера!

Indefinite или Past Continuous.

1. Не (to get) up at seven o'clock yesterday. 2. Father (to come) home at six o'clock yesterday. 3. I (to read) a book at six o'clock yesterday. 4. She (to fall) asleep at eleven o'clock yesterday. 5. Mother (to drink) tea at eleven o'clock yesterday. 6. Father (to watch) TV at ten o'clock yesterday. 7. I (to go) to bed at nine o'clock yesterday. 8. I (to finish) my homework at nine o'clock yesterday. 9. I (to play) the piano at five o'clock yesterday. 10. He (to begin) to do his homework at four o'clock yesterday. 11. She (to wash) the floor at four o'clock yesterday. 12. I (to meet) Nick at three o'clock yesterday. 13. When Г (to come) home, Kate (to play) the piano. 14. When I (to meet) John, he (to go) to the railway station. 15. When I (to go) to the museum, I (to see) a big crowd of people in the street. 16. They (to play) in the yard in the evening yesterday. 17. They (to play) in the yard the whole evening yesterday". 18. I (to clean) my teeth at eight o'clock in the morning yesterday. 19. We (to go) to the wood in summer. 20. When the teacher (to open) the door of the classroom, the pupils (to sit) at their desks.

1) I went into the church with a lot of other little girls and sat in the corner.
2) Every Sunday he went to church.
Задание: Нужно объяснить написание артикля the перед словом church. Почему в первом случае артикль есть, а во втором нет? Помогите пожалуйста, заранее благодарна.