The best hint that we have about friends' actions (according to our sentence) is that one friend is able to do whatever it is "before" the other actually acts. A "prediction" takes place in just this manner. The word literally means to speak before based on its Latin roots. Of all the options, this is the only one that is directly related to the clues provided in the sentence.

Two clues are provided in this sentence to help you choose the correct answer. The first is the prepositional phrase "with additional protein." This implies that many body builders must add to their diet. The second sentence repeats this same point: they need more protein than could be provided by normal eating. A "supplement" is something that adds to another thing. In particular, when applied to a person's diet, it helps to provide what would otherwise be lacking.  The word can be used as a verb to describe the act of such "supplementing."

Since moderate sounds are said to be "too quiet" for many elderly people, the implication is that they need to make them louder. This does not mean that they "brighten" them. That word would be a mismatch of senses. (Colors might be brightened, as could light. However, this does not really hold for sounds, except in a metaphorical sense.) To "amplify" is to increase or make louder. "Amplifiers" are added to sounds to make them play more loudly out of speakers, and something that is "ample" is plentiful (like a loud sound, though "ample" can apply to many other things).

The key word for this sentence is "identify." The general idea is that it used to be difficult for computer programs to identify a person's face. That is, it was difficult for a computer to conclude that a particular face image belonged to a particular person. In humans, we call this process "recognition." By extension, we can also say that a computer "recognizes" someone, at least insofar as it can identify that person in this manner.

The sentence means to say that the only way to overcome a hoard of ants is by means of traps and an exterminator. To "combat" means to fight. This is another way of describing the "overcoming" of such a hoard of insects. We often use "combat" as a noun, as in "combat in the war."

Since the writer is speaking about the first time that he or she "met" Sally, it is not a matter of being told about her at a distance. Clearly, Ken brought her to the person. (This is also quite clear, given that the author states that he brought her over to the house.) Therefore, we can safely guess that "introduced" is the best answer, since it implies physical presence, unlike the other options.

We can infer that because the tourist's believed that he was buying a "solid gold antique watch" when he was really buying a "merely gold-plated" watch, he was deceived. So, we need to pick out an answer choice that means something like "deceived." "Accosted" may look like a potentially correct answer choice, but "accost" means "approach and address someone boldly or aggressively," so it would not make sense in the sentence's context; if the tourist had been accosted, he surely would have known it at the time and not "discovered" so later. So, "accosted" cannot be the correct answer. "Hoodwink," however, is a verb that means "deceive or trick someone," so "hoodwinked" is the correct answer because it is the answer choice that best describe's the tourist's experience.

We can infer from the sentence that we need to pick out a verb for the blank that means something like "cancel out," because eating unhealthy junk food could cancel out the healthy benefits of exercise. Neither "enhance" nor "supplement" can be the correct answer, then, because they are each an antonym of "cancel out." While "interfere" might look like a potentially correct answer, it would be grammatically incorrect in the sentence without the addition of the word "with"; one wouldn't say that "junk food can interfere the healthy benefits of exercise." So, "interfere" cannot be the correct answer either. "Negate," however, is a verb that can mean "nullify; make ineffective," and because it best describes the effects that eating too much junk food can have on the healthy benefits of exercise, "negate" is the correct answer.

From the context of the sentence, we know that the blank word must mean something like gather or collect. The correct answer is therefore “amass,” which means collect a lot of. To provide further help, “edify” means build or teach; a “barrage” is a seemingly endless attack; an “impasse” is a deadlock, something that is hard to work around.

"Placate" means to appease or pacify. If the manager is "anxious to avoid a riot," he or she wants to please the customers, and does so by offering "free merchandise." The answer choice that best describes the manager's actions is "placate."