[Q]: How does the sentence end?

The students used the cards instead of the books to improve their memory of the subject because the

[A]: cards were more relevant.

[Q]: How does the sentence end?

The cancer had now moved from the blood to the bones, so the

[A]: bones was now infected .

[Q]: How does the sentence end?

Because Lindsey liked to go camping more than Natalie,

[A]:
Lindsey found owning a sleeping bag was essential.