N1 Grammar · Test 20

The sentence means 'Two parallel lines never intersect.' The correct verb is 交わる（まじわる）'to cross/intersect,' and its negative form is まじわらない. Parallel lines by definition never cross, so まじわらない fits perfectly.

• 1まじえない is the negative of 交える（まじえる）'to mix in/intermingle (transitive).' This is a transitive verb meaning 'to put X into Y,' which does not describe lines failing to intersect.
• 2まじらない is the negative of 交じる（まじる）'to mingle/be mixed (intransitive),' used for people or substances blending together, not for geometric lines crossing.
• 3まざらない is the negative of 混ざる（まざる）'to be blended/mixed (physically),' used for substances mixing, not for lines intersecting.

• 交まじわる — to cross, intersect (lines/paths)
• 交まじえる — to mix in, intermingle (transitive)
• 交まじる — to mingle, be mixed (intransitive)
• 混まざる — to be blended, mixed (physically)
• 平行へいこう — parallel
• 直線ちょくせん — straight line

The sentence describes the annoyance of having to show ID every single time you enter a building. わずらわしい 'troublesome, bothersome, annoying' perfectly captures this feeling of irritation at a cumbersome procedure.

• 2まちどおしい 'long-awaited, impatient (for something to happen)' describes eagerness for something desired, not annoyance at a hassle.
• 3みすぼらしい 'shabby, poor-looking' describes a worn or unkempt appearance, unrelated to the situation.
• 4はなはだしい 'very, extreme, egregious' is used to describe the degree of something negative (e.g. はなはだしい誤解 'a grave misunderstanding'), not a feeling of annoyance about a procedure.

• 煩わずらわしい — troublesome, bothersome, annoying
• 待ち遠しい（まちどおしい） — long-awaited, impatient for
• 見みすぼらしい — shabby, poor-looking
• 甚はなはだしい — very, extreme, egregious
• いちいち — one by one, every single time

The correct answer is 3. のきなみ (軒並み) means 'one after another' or 'across the board.' The sentence says that due to the recession, small and medium-sized enterprises in this area went bankrupt one after another. のきなみ is used when many things in a group experience the same outcome, which fits perfectly here.

• 1いまさら (今更) means 'at this late point' or 'it's too late now.' It expresses regret or belatedness and does not fit the context of companies going bankrupt.
• 2ひたすら (只管) means 'earnestly' or 'single-mindedly,' describing how one devotes oneself to something. It does not describe a pattern of bankruptcies.
• 4ひいては (延いては) means 'furthermore' or 'or even,' used to extend a statement to a broader consequence (e.g., 'it affects the company, and ひいては the whole industry'). It is a conjunction, not an adverb describing how bankruptcies occurred.

• のきなみ（軒並み） — one after another, across the board
• いまさら — at this late point, too late now
• ひたすら — earnestly, single-mindedly
• ひいては（延いては） — furthermore, or even

The correct answer is 4. 一面 (いちめん) means 'one side' or 'one aspect (of a person).' The sentence says: 'He is usually a strict teacher, but I found out he also has an amusing side.' The pattern 一面もある (also has a certain side) is a common expression for describing a hidden or different aspect of someone's personality.

• 1一見 (いっけん) means 'at first glance' or 'one look.' It is used in expressions like 一見すると (at first glance) and does not mean 'one aspect of a person.'
• 2一目 (いちもく) means 'one look' or 'one glance,' as in 一目惚れ (love at first sight). It does not describe a facet of someone's character.
• 3一部 (いちぶ) means 'one part' or 'a portion,' referring to a physical or structural part. It is not used to describe a side of someone's personality.

• 一面いちめん — one side, one aspect (of a person or thing)
• 一見いっけん — at first glance, one look
• 一目いちもく — one look, one glance
• 一部いちぶ — one part, a portion

The correct answer is 1. だぶだぶ describes clothing that is too large and baggy. The sentence says: 'I tried having my son wear a suit that had become too small for me, but it was だぶだぶ (too big/baggy on him).' Since the suit was too small for the father but put on a smaller child, it would naturally be too big and loose-fitting.

• 2ふらふら describes being unsteady, dizzy, or wandering aimlessly. It describes a person's physical state, not how clothing fits.
• 3のろのろ describes moving slowly or sluggishly. It describes the manner of movement, not clothing size.
• 4ぺこぺこ describes something flat/caved in (like a tire) or being hungry (お腹がぺこぺこ). It does not describe oversized clothing.

• だぶだぶ — baggy, too large (for clothing)
• ふらふら — unsteady, dizzy, wandering
• のろのろ — slowly, sluggishly
• ぺこぺこ — flat, deflated; very hungry

よみがえる (蘇る/甦る) means 'to be revived, to come back to life,' and is commonly used for memories resurfacing. The sentence means 'When I close my eyes, happy memories of my student days come back (revive).' This fits perfectly.

• 2ちかづける (近づける) means 'to bring closer, to approach.' Memories do not 'approach' in this context.
• 3すきとおる (透き通る) means 'to be transparent, to be clear.' This does not collocate with 思い出が.
• 4たてまつる (奉る) means 'to humbly offer/present (to a superior).' This is completely unrelated to memories.

• 蘇る/甦る（よみがえる） — to be revived, to come back (esp. memories)
• 近ちかづける — to bring closer, to approach
• 透き通る（すきとおる） — to be transparent, clear
• 奉たてまつる — to humbly offer/present

あくどい (悪どい) means 'unscrupulous, shady, excessive' and is used to describe business practices or methods that are dishonest or over-the-top. 'あくどい商売をする' is a natural collocation meaning 'to do business in a shady/unscrupulous way.'

• 1けむたい (煙たい) means 'smoky' or figuratively 'uncomfortable/daunting (around someone).' It does not describe business practices.
• 2まぶしい (眩しい) means 'dazzling, blinding.' It does not describe how one does business.
• 3はかない (儚い) means 'fleeting, transient, ephemeral.' It describes things that are short-lived, not business methods.

• 悪あくどい — unscrupulous, shady, excessive (in methods/business)
• 煙けむたい — smoky; daunting, uncomfortable to be around
• 眩まぶしい — dazzling, blindingly bright
• 儚はかない — fleeting, transient, ephemeral

はらはらする means to feel anxious or nervous about something that might go wrong. The parent watches their child play roughly and constantly worries that an accident might happen — this ongoing nervous suspense is exactly はらはら.

• 1おどおど (どきどき/びくびく) means acting timidly or nervously, describing how a person behaves when intimidated. It does not describe the feeling of watching someone else with anxiety.
• 2しみじみ means deeply or earnestly, used for savoring or feeling something profoundly (e.g., しみじみ感じる). It does not convey nervous worry.
• 4ぼつぼつ means 'gradually' or 'it's about time to…' (e.g., ぼつぼつ行こう). It is unrelated to anxious concern.

• はらはら(する) — to feel anxious/nervous that something bad might happen
• おどおど — timidly, nervously (manner of acting)
• しみじみ — deeply, earnestly
• ぼつぼつ — gradually; it's about time to…

おこたらない (怠らない) is the negative form of 怠る 'to neglect.' 努力を怠らない means 'never neglects effort / always makes effort,' which fits perfectly: the person is respected because they constantly apply themselves.

• 1かばわない (庇わない) means 'does not shelter/defend/cover for (someone).' 努力を庇わない is not a natural collocation and does not mean 'not neglecting effort.'
• 2おかさない (犯さない) means 'does not commit (a crime, an error).' 努力を犯さない is nonsensical.
• 4かたよらない (偏らない) means 'does not become biased/one-sided.' While 偏らない努力 is possible, the idiom for 'always making effort' is 努力を怠らない.

• 怠おこたる — to neglect, to be remiss
• 庇かばう — to protect, to cover for
• 犯おかす — to commit (a crime/offense)
• 偏かたよる — to be biased, to lean to one side

確保 (かくほ) means 'securing, ensuring.' 人材を確保する is a standard collocation: 'to secure personnel.' The sentence says that to carry out this project, first you must secure human resources.

• 1確信 (かくしん) means 'conviction, firm belief.' It is a noun for mental certainty and does not take する to mean 'securing.'
• 2確立 (かくりつ) means 'establishment (of a system/position).' You establish a system, not personnel.
• 3確率 (かくりつ) means 'probability.' It is a mathematical/statistical noun and cannot be used as 確率する.

• 確保かくほ — securing, ensuring (resources, personnel, etc.)
• 確信かくしん — conviction, firm belief
• 確立かくりつ — establishment (of a system/idea)
• 確率かくりつ — probability