Preterite or Imperfect?

I was sick during spring break.

• Preterite

• Imperfect

Yesterday, I started reading a new book.

• Preterite

• Imperfect

I woke up, I took a shower, and I ate breakfast.

• Preterite

• Imperfect

I finished all my homework yesterday.

• Preterite

• Imperfect

The sky was blue and the people were happy.

• Preterite

• Imperfect

When I was young, I used to play freeze tag.

• Preterite

• Imperfect

I was so confused by the assignment.

• Preterite

• Imperfect

I woke up and got ready, but then I felt really tired.

• Imperfect... then Preterite

• Preterite... then Imperfect

I was really hungry, so I ate, then I felt much better.

• Preterite... Imperfect... Preterite

• Imperfect... Pretereite... Imperfect

I practiced guitar for 4 hours yesterday.

• Preterite

• Imperfect