Problem: How does the sentence end?

The photography professor praised Elena but not Sarah because
Answer: Sarah turned the assignment in late.

Problem: How does the sentence end?

The entire class felt immense pressure to do well on the test, because the
Answer: class was very competitive.

Problem: How does the sentence end?

Gem got free umbrellas and sandals in a competition. She kept the
Answer: sandals because it was sunny.

Problem: How does the sentence end?

Because Amy had bad knees while Jessica had healthy knees,
Answer:
Jessica felt fine when hiking long distances.