For the first blank, we need a verb that means something like discouraged. Either "daunted," "deterred," or "dissuaded" could work. For the second blank, we need a verb that means something like hesitated; either "wavered" or "oscillated" could fit. For the last blank, we need a verb that conveys how Riley went back on his initial promise; between "reneged" and "adulterated," "reneged" is the better option, so the correct answer is "daunted . . . wavered . . . reneged."

Clearly, the relationship between the first two blanks is one of intensification. The word that goes in the first blank must be a weaker (but related) form of the word that goes in the second blank. Likewise, we can tell that Matthew's outlook is one of disgust. Therefore, the option that includes "dislike . . . abhorred" is the best for these first two blanks. (The option with "despise . . . detested" does not function for the intensification and hence is not acceptable.) The word "evinced" can mean bore evidence of, which is exactly what his disgust did—at least in his friends' eyes.

Clearly, the troops did not undertake their march. The sentence indicates this by the use of the past tense in several places ("would have greatly" and "such difficulties would have endangered"). Therefore, the best option is "aborted . . . impeded . . . exposed." To "abort" something is merely to stop it—which is what they did by not marching. To "impede" means to make difficult. This describes what would happen due to the difficult ("inclement") weather. Likewise, it does make sense that such impeding would leave the people exposed for some time. The only tempting wrong option for this is likely "open." Indeed, the whole set of answers "daring . . . hindered . . . open" is likely tempting, for this would be a tempting plot and would have been hindered.  However, it is clear that the plot was not undertaken, for the sentence states that it would have been tempting and would have been dangerous, but it was not undertaken.

The best clue in this sentence is the opening conjunction "although." This establishes a contrast between Thomas' energetic nature and what seems to be a less-than-energetic approach to gardening. The three options that remain based on this are "dither," "putter," and "wander." This must be synonymous with the thought expressed as part of the second blank (or at least relatively synonymous). The friends marvel at the fact that he cannot do something. Not being able to complete something would indicate that Thomas does not do much work. To "dither" is to avoid making any decisive choices. Thus, the pair of "dither" and "complete" is excellent, given that a dithering person might not complete anything. While "rouse" often describes the process of making someone wake up, it can mean more generally to bring to activity out of inactivity.

Since Peter was unsuccessful, we cannot say that he succeeded in his initial plans. For this reason, the wrong answer that includes "planned . . . annihilate" is somewhat tempting, for "planned" does not indicate that he succeeded; however, it is most likely that Peter altered his plans after the lack of success. Therefore, the option containing "recalibrate" (meaning readjust) is the best. The first two words—"attempted . . . ambush"—likewise work well.

Probably the best clue for beginning to unravel this sentence is the word "fraudulent." This indicates that the document is not an honest or true one. Thus, we can guess that the document was likely forged or fabricated. This lends a lot of weight to the option "forging" in contrast to the mere "copying" or "reproducing." Indeed, it does not make much sense to say that it is pilfered—for a stolen document is not necessarily fraudulent. The sentence implies that the worker hopes that people will believe that it is a true document before they even have a chance to notice its fraudulent nature. To "validate" a document is to pronounce it to be true to "proper form." He would want to do this before any suspicion arose regarding it.

The end of the sentence implies that the air pressure outside of the plane is causing damage on the body of the craft. This means that the pressure is higher outside of the vehicle than inside of it. Something that applies a force to another thing is said to "exert" that force. If such force is being applied inwardly up on the plane, its body is likely collapsing. This is best described among our options by the word "implode," which means "to collapse inward." This could only happen, of course, if the plane had less pressure, not more. Thus, the pressure must be decreasing—or, a good option given here, diminishing.

In two places, the accident is said to be rather terrible. This is indicated by the words "disastrous" and "the devastation." The bystander seems to have been able to help those who were still alive after the accident. Thus, the simplest answer for the last blank is "survived." Given that there were such horrible effects, it does not seem that he was able to completely overcome the disastrous effects; however, the sentence implies that he lessened them. The word "mitigate" means to diminish or to make milder. (The word comes from a Latin base meaning mild.) Finally, the sentence says that he was able to mitigate the disaster's effects; however, it seems that he could not entirely prevent the disaster itself. To "avert" something is to do just that. 

The first blank of this sentence indicates that the doctors would like to slow the growth of the tumor, perhaps stopping it. The most tempting wrong answer here is "invert," for you might interpret it as "reverse" (as in, making it shrink); however, this is a bit of a stretch, and the sentence hints that they are looking merely to reduce the pain for the time being, which would begin by stopping this growth. The verb "to check" can be used in this way, though we do not often think of this meaning immediately. The option "provide" is quite acceptable and requires very little explanation. Clearly, the patient as been suffering. To be "afflicted" means to experience suffering, which is a good option for the final blank.

The clearest clue in this sentence is the description of the man as being known for procrastinating, meaning that he puts things off to the future. ("Procrastinate" comes from Latin roots meaning on behalf of / for ("pro-") tomorrow ("-cras").) When someone "defers" something, he or she puts it off for a later date. Clearly, the decision to be made is important (for it is related to a troublesome matter). The man's delay is likely annoying to his wife. To be "piqued" can mean either to be interested (e.g. "piqued his curiosity") or to be irritated. The latter is the case for this sentence. Finally, to overcome his wife's annoyance, it makes sense for the man to deal with the issue. Thus, he should "resolve" it, meaning that he should find a solution to the problem.