Tanya followed carefully as Rebecca taught them the fundamentals of reading, because 
OPTIONS:
- Tanya was a dedicated teacher.
- Rebecca was a dedicated teacher.
Rebecca was a dedicated teacher.

Derrick was more likely to have an apple at lunch than Neil because 
OPTIONS:
- Derrick liked to eat fruit.
- Neil liked to eat fruit.
Derrick liked to eat fruit.

Since Betty drank plenty of water during the hike while Angela forgot to bring any, 
OPTIONS:
- Betty was very dehydrated by the end of the hike.
- Angela was very dehydrated by the end of the hike.
Angela was very dehydrated by the end of the hike.