She is a good teacher who can ______ her students to work harder.
A. motivate
B. motive
C. motion
D. motivation
Nursing is a very ______ career.
A. worth
B. worthwhile
C. worthy
D. valued
_______ the nearest gas station is thirty miles away makes me frustrated.
A. Which
B. What
C. That
D. Why
Is money _______ to happiness?
A. essentially
B. essential
C. necessarily
D. necessity