Problem: How does the sentence end?

Emily brought her newly single friend, Jennifer, a huge box of chocolate with a ribbon on it because 
OPTIONS:
- Emily thought is would cheer her up.
- Jennifer thought is would cheer her up.
Answer: Emily thought is would cheer her up.

Problem: How does the sentence end?

Ian needed Dennis's help to do a google search because 
OPTIONS:
- Ian did not like to use the internet for school.
- Dennis did not like to use the internet for school.
Answer: Ian did not like to use the internet for school.

Problem: How does the sentence end?

To have better dreams, Rick stopped watching scary movies before bed and started listening to classical songs. The 
OPTIONS:
- songs was less arousing.
- movies was less arousing.
Answer: songs was less arousing.

Problem: How does the sentence end?

Erin liked to use natural sweeteners while Angela liked to use artificial ones. 
OPTIONS:
- Erin used aspartame to sweeten their tea.
- Angela used aspartame to sweeten their tea.
Answer:
Angela used aspartame to sweeten their tea.