Question:
They did a lot better at the vocabulary compared to the grammar, because the OPTIONS:
- vocabulary was more difficult.
- grammar was more difficult.

Answer:
Continue the sentence -- grammar was more difficult.

Question:
Cynthia decided to go west but ended up venturing down towards the equator while Natalie lived in Oregon. OPTIONS:
- Cynthia was going southwest.
- Natalie was going southwest.

Answer:
Continue the sentence -- Cynthia was going southwest.

Question:
So OPTIONS:
- William was happy because William had managed to steal a valuable painting from the house of Christopher.
- Christopher was happy because William had managed to steal a valuable painting from the house of Christopher.

Answer:
Continue the sentence -- William was happy because William had managed to steal a valuable painting from the house of Christopher.

Question:
When the car and the bicycle had a race across town, the OPTIONS:
- bicycle was definitely faster.
- car was definitely faster.

Answer:
Continue the sentence -- car was definitely faster.