You probably know Benedict Arnold from history class or from his representation in popular culture. Even if you did not the sentence suggests that he went away from the American army and joined the British army. The correct answer is therefore "defected" which means to leave an organization and join a rival organization. To provide further help, "fled" means ran away from; "abandoned" means left; "scampered" means ran chaotically and quickly from; "recoiled" means cowered, moved away in fear or disgust. As you can probably tell all of these answers could have at least partially fit as correct answers, but none are as strong as "defected" which is clearly the best answer. 

In order to find sunglasses that you dropped it makes sense to go back over your steps. The correct answer then is "retrace" which means to go over again. To provide further help, "uncover" means reveal, show; "combine" means mix, put together; "infect" means make sick with; "inform" means tell. 

It makes sense that the professor would be brought back to his position after he was found innocent of all accusations. Therefore the correct answer must mean something like restored. The correct answer, then, is "reinstated." To provide further help, "remunerated" means paid; "divulged" means revealed; "accosted" means attacked, assaulted; "enumerated" means listed.

Based on the context of this question you are looking for some answer that means something like tempt or attract using some reward. The correct answer therefore is "lure." To provide further help, "preach" means give a religious speech or tell people what to do; "languish" means weaken, suffer from being in one place, not be able to move forward

As you probably know life (as far as is understood) exists only on Earth. And, on Earth, it exists in large quantities. To exist in large quantity is to "abound." To provide further help, "subside" means die down, become less intense; "meander" means to wander, from side-to-side, like a river; "hesitate" means pause, delay; "yield" means surrender. 

Secrets are things that you probably do not want to be revealed to other people. So when the speaker says that he can be trusted it is likely because he won't reveal, make known, tell the other person's secrets. The correct answer then is "divulge," which means reveal, make known. To provide further help, "encroach" means trespass, infringe upon; "soothe" and "placate" both mean to calm someone; "entrust" means confide in, tell someone a secret. So, to provide some final help you would "entrust" a secret to someone you do not think will "divulge" it. 

If the speaker's mother lost her job then it makes sense that the family would have to be frugal, cut costs and save money, or "economize." To provide further help, "estimate" means guess; "debase" means humiliate; "demonize" means portray as evil, make people think someone or something is evil; "pontificate" means arrogantly express one's own opinion in a way that is considered preaching or sanctimonious.

To solve this problem you have to determine which of these verbs describes something someone would do in order to try and get favor with another person. The correct answer then is "flatter," which means to praise insincerely, to excessively compliment. Additionally, "authorize" means allow to happen or officially support; "preserve" means maintain, save; "cure" means make feel better, get rid of a sickness; "meddle" means interfere, get involved with. 

The lady puts up warning signs so it makes sense that she does not want people to trespass or "encroach" on her land. To "encroach" means to intrude on someone else's property or space. Additionally, to "wean" means to come off a habit; to "conform" means to accept the common behavior as correct and adopt such behavior oneself; "subside" means die down, become less intense; "entrust" means trust in, confide.

Based on the context of this sentence you know you are looking for a verb that means something like to become unaccustomed to, to become no longer addicted to. The correct answer is therefore "weaned." To "wean" means to become no longer addicted to. Additionally, "procure" means to obtain, to get; "grapple" means struggle with, fight with; "augment" means add to, enhance; "formulate" means devise, come up with.