You have to work hard if you want to succeed . . . . . . . . life. A. in B. from C. for D. to

in
from
for
to

The correct answer is D. to.

The preposition “to” is used to indicate a goal or destination. In this case, the goal is to succeed in life.

The other options are incorrect because they do not indicate a goal or destination.

  • The preposition “in” is used to indicate a location or position. In this case, it would not make sense to say that you have to work hard “in” life.
  • The preposition “from” is used to indicate a starting point or origin. In this case, it would not make sense to say that you have to work hard “from” life.
  • The preposition “for” is used to indicate a purpose or reason. In this case, it would not make sense to say that you have to work hard “for” life.