You might already know that the word "remedy" can refer to a treatment for an ailment or injury. In that case, however, "remedy" is used as a noun. When this word is instead used as a verb, its meaning becomes slightly different. Here, to "remedy" something means to correct it, and "remedy" generally is used to refer to a situation that has gone wrong. Our clear answer, then, is "fix." The three answers that remain are antonyms, since they refer to the act of making a condition worse.

“Avert” means turn away or prevent. To provide further help, “desist” means stop; “abrasive” means rude; “irate” means angry; “suppress” means hold down, conceal. 

"Approve" is a verb that means accept or agree to, so the answer choice closest in meaning is "accept," a verb that means agree to. Considering the other answer choices, none are close in meaning to "approve": "reject," when used as a verb, means refuse to accept or deny; "bash," when used as a verb, means hit or pummel, especially in the case in which an object is used to do the hitting; and "ruin," when used as a verb, means destroy.

To "barter" is to trade or "exchange" one thing for another. The other words do not match the connotation of "barter" as well. "Renting" indicates borrowing; "sneaking" is stealthily lurking around; and "sidling" is moving secretly.

"Squander" means waste or spend unwisely, so "waste" is the correct answer. None of the other answer choices are close in meaning to "squander": "flourish" means succeed or thrive; "quell" means crush or suppress; "cease" means finish or stop; and "tamper" means interfere or disrupt.

To "acquire" means to get, obtain, or buy, so "obtain" is the synonym.

"Usurp" is a verb that means "take a position of power or importance illegally or by force." While "oversee," "approve," and "mandate" might all look like potentially correct answers because they all have to do with positions of power, only "seize" ("take hold of suddenly and forcibly" or "take forcible possession of") is close in meaning to "usurp," so "seize" is the correct answer.

"Ratify" means to give legal or official approval to, so "endorse" is the best choice. "Invalidate" actually has the opposite meaning, while "prototype" means a preliminary model of an invention built before the actual invention; "goad" means encourage or prod; and "embark" means set of on a trip, usually one made by ship.

"Drudge" means work diligently at a task, often for a prolonged period of time. "Toil" means work hard as well. Therefore, "toil" is the correct answer.

To "spearhead" something, like a project, means to lead it. Imagine the tip of a spear piercing its target; the rest of the spear follows the head's lead. So, "lead" is the correct answer.