“Attribute” is a word that can be used as noun or a verb, but because all of the potential words are nouns, we will need to consider “attribute” as a noun. When used as a noun, “attribute” means “a characteristic of someone or something.” So, we need to pick out an answer choice that means something like “quality” or “feature.” That means that “memorial” cannot be the correct answer, because while “attribute” sounds like “tribute” and “memorial” is a synonym of “tribute,” “memorial” does not mean the the same thing as “attribute.” “Characteristic,” however, is a noun that means “a quality belonging typically to a person, place, or thing,” and because “characteristic” is the answer choice closest in meaning to “attribute,” “characteristic” is the correct answer.

A "fray" is a fight or a disturbance. The best choice is "fight," as it is a part of the definition of "fray." Considering the other choices, "light" refers to the thing that makes things visible or means not heavy, "atone" means make up for an offense, and "scared" means frightened.

"Toil" is work, and to "toil" means to work. The best choice is "work" because it is a part of the definition of "toil."

To "counsel" means to advise or to give advice. So, "advise" is the correct answer. None of the other answer choices are close in meaning to "counsel": "detect" means notice; "display" means show; "debate" means argue; and "admonish" means criticize or tell off.

"Menace" is a word that can be used as a noun or a verb, but because all of the potential answer choices are nouns, we will need to consider "menace" as a noun. When used as a noun, "menace" can mean "a person or thing that is likely to cause harm; a threat or danger," "a threatening quality, tone, or atmosphere," or, informally, "a person or thing that causes trouble or annoyance." So, we need to pick out a noun that means something like "something that is likely to cause harm," "a threatening quality," or "a person that causes annoyance." "Safeguard," then, cannot be the correct answer, because "safeguard" is a noun that means "a measure taken to protect someone or something or to prevent something undesirable," making it an antonym, not a synonym, of "menace." "Hazard," however, is a word that when used as a noun, can mean "a danger or risk" or "a potential source of danger." Because "hazard" is the answer choice closest in meaning to "menace," "hazard" is the correct answer.

“Duplicate” is a word that can be used as a noun or a verb, but because all of the potential answer choices can be used as verbs, we will need to consider “duplicate” as a verb. When used as a verb, “duplicate” means “copy,” so we need to pick out an answer choice that means something like “copy.” That means that “distinguish” cannot be the correct answer, because “distinguish” means “recognize as being different,” a meaning very distant from that of “duplicate.” “Reproduce,” however, is a verb that can mean “produce a copy,” and because “reproduce” is the answer choice closest in meaning to “duplicate,” “reproduce” is the correct answer.

“Demand” is a word that can be used as a noun or a verb, but because all of the potential answer choices can be used as verbs, we will need to consider “demand” as a verb. When used as a verb, “demand” means “say in a forceful way,” so we need to pick out an answer choice that means something like “say forcefully.” That means that “reject” cannot be the correct answer, because “reject” can mean “dismiss” or “refuse,” two meanings very different from that of “demand.” “Insist,” however, is a verb that means “not accepting refusal,” and because “insist” is the answer choice closest in meaning to “demand,” “insist” is the correct answer.

"Wager" is a word that when used as a noun, means "an agreement in which people try to guess what will happen and the person who guesses wrong has to give something (such as money) to the person who guesses right," and when used as a verb, means "to risk losing something (such as money) if your guess about what will happen is wrong." So, we need to pick out an answer choice that is either a noun that means something like "an agreement in which people try to guess what will happen and something (such as money) is at stake," or a verb that means "to enter into such an agreement." "Bet" is a word that when used as a noun means "an act of risking a sum of money on the outcome of a future event," and when used as a verb means "risk something, usually a sum of money, against someone else's on the basis of the outcome of a future event, such as the result of a race or game." Because "bet" is the answer choice closest in meaning to "wager," "bet" is the correct answer.

"Ditch" is a word that when used as a noun, means "a narrow channel dug in the ground, typically used for drainage alongside a road or the edge of a field." When used as a verb, "ditch" can mean "provide with ditches," or, informally, "get rid of; give up." Because all of the answer choices are verbs, we will need to consider "ditch" as a verb pick out an answer choice that means something like "provide with ditches" or "get rid of." "Follow," then, cannot be the correct answer, because if one is following someone, they are not abandoning them. "Desert," however, is a word that when used as a verb means "abandon (a person, cause, or organization) in a way considered disloyal or treacherous," and because "desert" is the answer choice closest in meaning to "ditch," "desert" is the correct answer.

As a noun, "blend" refers to a combination or mixture; as a verb, it means mix substances together. In any case, "mixture" is the best choice here. "Separation," or the act of moving parts away from each other, is the opposite of the correct synonym. "Progress" and "activity" are unrelated.