1. Emma rode her bike last night.

Question

2. Emma rode her bike yesterday night.
[Are both okay? Can we use #2?]

3. Owen took a hot shower yesterday morning.
4. Owen took a hot shower last morning.
[Which one do we have to use, yesterday or last?]

5. He went fishing yesterday afternoon.
6. He went fishing last afternoon.
[Which one do we have to use, yesterday or last?]

7. She took a swimming class yesterday evening.
8. She took a swimming class last evening.
[Which one do we have to use, yesterday or last?]

Answer 1

2, 4, and 6 are not used.

All the others are fine.