Письмо, которое она получила утром,

Письмо, которое она получила утром, расстроило ее. 10. Утром она получила письмо, которое ее расстроило.

Результаты (английский) 1:

The letter, which she received in the morning, upset her. 10. In the morning she received a letter that upset her.

Результаты (английский) 2:

The letter that she had received in the morning, upset her. 10. in the morning, she received a letter that her upset.

Результаты (английский) 3:

Letter, which she had received this morning, defeated it. 10. This morning she received a letter, which it defeated.