Benjamin studied very hard for their philosophy test unlike William's. 
OPTIONS:
- Benjamin failed the exam easily.
- William failed the exam easily.
William failed the exam easily.

Tanya had been collecting art for much longer that Jessica, so 
OPTIONS:
- Tanya knew  collection was more valuable.
- Jessica knew  collection was more valuable.
Tanya knew  collection was more valuable.

Angela tripped over Amy's potted plants because 
OPTIONS:
- Angela placed the plants in the open doorway.
- Amy placed the plants in the open doorway.
Amy placed the plants in the open doorway.