[Q]: How does the sentence end?

Pippa was feeling shy about showing her poem to her teacher so she hid it inside a book, because the

[A]: book was never used by anyone.

[Q]: How does the sentence end?

Aaron went to a college and met Adam who is very smart,

[A]: Aaron got help from him to study calculusinfinitesimal calculus.

[Q]: How does the sentence end?

It's better to buy present at the department store than at the grocery store as the

[A]:
department store has better selection.