(ESCOLA NAVAL - 2016)
Which question word best completes the paragraph below?
So if smoking is so bad for you, __________ is it so hard to quit? Stopping smoking is difficult for several reasons: nicotine is highly addictive, rewarding psychological aspects of smoking and genetic predisposition.
(Adapted from http://www.spine-health.com/wellness/stop-smoking)
what
when
who
whose
why
Gabarito:
why