Problem: How does the sentence end?

Most of my classmates signed up for music class instead of astronomy class since the
Answer: astronomy class is pretty hard.

Problem: How does the sentence end?

Grandma makes the best strawberry jam and jelly. Zena dislikes the seeds so she always asks for the
Answer: jelly on her toast.

Problem: How does the sentence end?

Kevin used a red pen to mark the essay written by Brett;
Answer: Kevin offered constructive criticism.

Problem: How does the sentence end?

Collecting sand dollars is a favorite pasttime of Samuel but not Ryan because
Answer:
Ryan feels they are dirty and ugly.