Here are my paralle structure sentences:

The dog had to choose between jumping over the fence and digging a hole underneath it.

She disliked going to the beach and hiking in the woods, and she did not care for picnics, either.

As I look down the city street, I see the soft lights from restaurant windows, and I hear the mellow sounds of a nightclub band and the carefree moods of people walking by.

The singers have been on several road tours, have recorded for two record companies, and would like to make a movie someday.

They would rather order pizza than eat their sister's cooking.

I explained to the teacher that my car had broken down, my books had been stolen, and I had no assignment pad.

That night the prisoner was sick, discouraged, and filled with loneliness.

As the truck rumbled down the street, it suddenly lurched out of control, smashing into a parked car and hitting the storefront of my uncle's hardwood store.

The teacher is patient, is intelligent, and demands a lot.

He was determined to pass the math course, to get not only his three credits but also a sense of achievement.

Here are the ones that I corrected are these correct:
The dog had to choose jumping over the fence or to dig a hole underneath it.

She disliked hiking in the woods, picnicking, and going to the beach.

As I look down the city street, I see the soft lights from restaurant windows, hear the mellow sounds from a nightclub band, carefree moods of people walking by.

The singers have been on several road tours, recorded for two record companies, and would like to make a movie someday.

They would rather order pizza than eat their sister's cooking.

I explained to the teacher that my car had broken down, books were stolen, and I had no assignment pad.

That night the prisoner was sick, discouraged ,and filled with loneliness.

As the truck rumbled down the street, it suddenly lurched out of control, smashing into a parked car and hitting the storefront of my uncle's hardwood store.

The teacher is patient, intelligent, and demands a lot.

He was determined to pass the math course, get his three credits, also a sense of achievement.

I can't tell which are the original sentences and which are your corrections.

Study this site carefully before you repost your corrections.

http://www.chompchomp.com/terms/parallelstructure.htm

Your corrections to the sentences are mostly correct. Here is the breakdown of each sentence and the corrected version:

1. The dog had to choose jumping over the fence or to dig a hole underneath it.
Correction: The dog had to choose between jumping over the fence and digging a hole underneath it.

2. She disliked hiking in the woods, picnicking, and going to the beach.
Correction: She disliked going to the beach and hiking in the woods, and she did not care for picnics, either.

3. As I look down the city street, I see the soft lights from restaurant windows, hear the mellow sounds from a nightclub band, carefree moods of people walking by.
Correction: As I look down the city street, I see the soft lights from restaurant windows, and I hear the mellow sounds of a nightclub band and the carefree moods of people walking by.

4. The singers have been on several road tours, recorded for two record companies, and would like to make a movie someday.
Correction: The singers have been on several road tours, have recorded for two record companies, and would like to make a movie someday.

5. They would rather order pizza than eat their sister's cooking.
This sentence is correct.

6. I explained to the teacher that my car had broken down, books were stolen, and I had no assignment pad.
Correction: I explained to the teacher that my car had broken down, my books had been stolen, and I had no assignment pad.

7. That night the prisoner was sick, discouraged, and filled with loneliness.
This sentence is correct.

8. As the truck rumbled down the street, it suddenly lurched out of control, smashing into a parked car and hitting the storefront of my uncle's hardwood store.
This sentence is correct.

9. The teacher is patient, intelligent, and demands a lot.
This sentence is correct.

10. He was determined to pass the math course, get his three credits, also a sense of achievement.
Correction: He was determined to pass the math course, to get not only his three credits, but also a sense of achievement.

Keep in mind that parallel structure is about maintaining consistency in the structure of the sentence. In these examples, you have successfully corrected most of the sentences to have parallel structure. Good job!