Problem: How does the sentence end?

Cynthia showed Rebecca how to prepare the strawberry cheesecake, since 
Answer: Cynthia was a cooking professional.

Problem: How does the sentence end?

Angela was a more adventurous eater than Megan so 
Answer: Angela decided to try the seaweed.

Problem: How does the sentence end?

Kyle was sunburned while Aaron stayed in the shade so 
Answer: Aaron put nothing on their on face.

Problem: How does the sentence end?

Brittany clicked on the file with her cursor, using the 
Answer:
cursor to open it up so she was able to access the information.