Problem: How does the sentence end?

Being a teacher in elementary school suited Christine but not Katrina because
OPTIONS:
- Christine hated teaching children.
- Katrina hated teaching children.
Answer: Katrina hated teaching children.

Problem: How does the sentence end?

Manny tried to cut the bushes with the shears, but was having issues because the
OPTIONS:
- shears were dull.
- bushes were dull.
Answer: shears were dull.

Problem: How does the sentence end?

The girl thought the shell wasn't as beautiful as the rock because the
OPTIONS:
- shell was dull.
- rock was dull.
Answer: shell was dull.

Problem: How does the sentence end?

Rebecca had a severe bone disease but Erin did not, so
OPTIONS:
- Rebecca had to constantly receive medical attention for the disease.
- Erin had to constantly receive medical attention for the disease.
Answer:
Rebecca had to constantly receive medical attention for the disease.