Today’s world is changing rapidly, making _____ necessary for us to continue learning otherwise we can’t keep up with the time.

—Could you tell me how to get to Victoria Street?—Victoria Street? ______ is where the Grand Theatre is.

—Could we see each other at 9 o’clock tomorrow morning?—Sorry, let’s make it ______ time.

The position will be offered to ______ wins the most votes in the next election.

 Of all the books on the desk, ______ is of any use for study.