[Q]: How does the sentence end?

Lawrence asked Randy when the new jazz nightclub was expected to open downtown but

[A]: Randy didn't know.

[Q]: How does the sentence end?

Jim, an aspiring author, decided to write a short story over a book because the

[A]: book writing is time-consuming.

[Q]: How does the sentence end?

Jessica has a lot more company over to their house than Erin because

[A]:
Jessica loves to socialize.