Doctors work with patients just as teachers work with students, so "patients" is the correct answer.

A fan moves air by blowing it around, so you need to pick out an answer choice that describes what a hose moves. A hose moves water, so "water" is the correct answer. None of the other answer choices are things that are moved by hose, so none of them can be the correct answer.

Since veterinarians help animals when they are sick or hurt, we need to pick out a word that represents an occupation whose practitioners help out people when they are sick or hurt. While both "doctor" and "hospital" may look like correct answers, "hospital" can't be the correct answer because it is the name of the place where people go when they are sick or hurt, and not the job title of the people who help them. "Doctor" is the correct answer because just like veterinarians help animals when they are injured, doctors help people when they are injured.

Since firefighters fight fires, we need to pick out another pair of words in which the first word is a job, and the second word is the thing that people who work that job try to stop. While "policeman," "librarian," "doctor," and "waiter" are all occupations, but "healthy" can't be the correct answer because it's an adjective, not a noun, and "librarian is to books" can't be correct either because a librarian doesn't try to stop books, he or she distributes them and helps people find them. Since a policewoman's job is to stop crime, just like a firefighter's job is to stop fires, "policewoman is to crime" is the correct answer.

To "disinfect" means to make something clean, to rid something of "germs." So, to solve this analogy you need to determine which of these words means to get rid of hair, to remove one's hair. The correct answer is "shave." Additionally, "delete" means remove, cancel, get rid of; "suspend" means pause, halt until later; "create" means make, come up with, invent; "unleash" means release, set loose.

A "chapel" is a little church, it is a place where one might go to "pray." So, which of these is an activity that one might go to a "casino" to do? The correct answer is "gamble" which means bet, wager. Additionally, "illegal" means against the law, not legal; "spiritual" means religious, related to the soul.

An action that one might do in the "kitchen" is "cook." So, to solve this analogy you need to determine which of these is an action one might do in the "bathroom." The correct answer is "wash."

To begin with the prefix co- means together, with. So, a "colleague" is someone you work with, two "colleagues" are two people who work together. Which of these is an action you might undertake with a "combatant?" The correct answer is that a "combatant" is someone you "fight" with.

To begin with the prefix de- means away from, take from. So, to "deforest" means to remove "trees." Which of these is removed when you "dehydrate" something? Well, the root -hydra- means related to water. So, to "dehydrate" is to remove water.

A "janitor" is someone who cleans for a living. So, "clean" is an action that a "janitor" might undertake. Which of these is an action that a "mechanic" might undertake? Well, a "mechanic" is someone who fixes machines for a living. So, "repair" is the correct answer. "Repair" means fix, mend, make something no longer broken.