N2 Grammar · Test 10

The correct option is 1: おきに. The suffix おきに (置きに) is used with numbers and counters to indicate a recurring interval. In this context, 「2日おきに」 means 'at intervals of two days' (watering every two or three days, depending on strict vs. colloquial interpretation, but the key is that it expresses a regular interval). The sentence means: 'This flower doesn't need to be watered every day. Please water it about once every two days.'

• 2ぶりに (振りに) is used when an action happens again after a certain period of time has passed since the last occurrence, translating to 'for the first time in ~'. For example, 「2日ぶりに水をやる」 means 'watering it for the first time in two days'. It describes a single resumption of an action, not a regular schedule, so it does not fit a general instruction for routine plant care.
• 3うちに means 'while' or 'before a state changes' (e.g., 「2日のうちに」 would mean 'within two days'). It is used to express a time limit or a continuing state, not a recurring interval, so it does not fit the context of a repeated watering schedule.
• 4たびに (度に) means 'every time (something happens)'. It is typically attached to a verb (e.g., 会うたびに) or a noun + の (e.g., 試合のたびに). Saying 「2日のたびに」 is grammatically unnatural. To express 'every two days' using this pattern, one would use ごとに (毎), but even then, おきに is the standard and correct choice for intervals in this context.

• おきに (置きに)（おきに） — at intervals of (used with numbers/counters to show regular spacing)
• ぶりに (振りに)（ぶりに） — for the first time in (a period of time); after a long interval
• うちに — while; during; before a situation changes
• たびに (度に)（たびに） — every time; whenever

The correct order is: 狭い部屋でもテーブルの上に物を置かない【ようにする】【だけで】【広く感じられる】【ようになると】本に書いてあった。The full sentence means: 'A book said that if you just make a habit of not putting things on the table, even a small room will feel spacious.' The ★ position is filled by option 4 (広く感じられる), which connects だけで ('just by doing that') to ようになると ('when it becomes the case that...').

• 1だけで ('just by doing~') must follow ようにする to form 'just by making sure not to place things on the table.' Placing it at ★ breaks the flow.
• 2ようになると ('when it becomes that~') must come at the end of the clause, right before 本に書いてあった. It cannot occupy the ★ position.
• 3ようにする ('make a habit of / try to') must directly follow 置かない to form 置かないようにする ('try not to put things'). It cannot go at ★.

• ようにする — to make a habit of doing; to try to do
• だけで — just by doing that; merely by
• 広く感じられる（ひろくかんじられる） — feels spacious / feels wide
• ようになると — when it becomes the case that~

The correct order is: レストランでアルバイトを始めてから【今日で1年たつのに】【客の注文を間違えた】【うえに】【皿を割るという】ミスまでしてしまった。The full sentence means: 'Even though it's been a year since I started working at the restaurant, I made the mistake of not only getting a customer's order wrong but also breaking a plate.' The ★ position is filled by option 3 (うえに), which connects the first mistake (客の注文を間違えた) to the second, worse one (皿を割るというミスまでしてしまった).

• 1今日で1年たつのに ('even though it's been a year today') sets up the contrast and must come first, right after 始めてから.
• 2皿を割るという ('breaking a plate') modifies ミス and must come right before ミスまでしてしまった at the end.
• 4客の注文を間違えた ('got a customer's order wrong') is the first mistake and must come before うえに, not at ★.

• 〜のに — even though~ (expresses disappointment/contrary to expectation)
• 〜うえに — in addition to~; on top of~ (adding a further, often negative, fact)
• 〜というミス — the mistake of~
• 〜まで — even~; going so far as to~

The correct order is: 大雨の中を傘を差さずに【帰ったせいか】【治りかけていた】【風邪が】【またひどくなって】今朝からずっと鼻水が止まらない。The full sentence means: 'Perhaps because I went home without an umbrella in heavy rain, the cold that was starting to get better got worse again, and my runny nose hasn't stopped since this morning.' The ★ position is filled by option 1 (風邪が), which is the subject of またひどくなって ('got worse again').

• 2治りかけていた ('was starting to recover') modifies 風邪が and must come right before it: 治りかけていた風邪が.
• 3またひどくなって ('got worse again') follows 風邪が and connects to the final clause 今朝からずっと鼻水が止まらない.
• 4帰ったせいか ('perhaps because I went home') must come right after 傘を差さずに, explaining the cause.

• 〜せいか — perhaps because~; probably due to~
• 治なおりかける — to start to recover / begin to get better
• ひどくなる — to get worse / become severe

The correct order is: 【たんぱく質が】【多く含まれる】【食べ物というと】【肉や魚や卵といった】ものが思い浮かぶと思いますが、大豆にもたくさん含まれています。The full sentence means: 'When you think of foods that contain a lot of protein, you probably think of things like meat, fish, and eggs, but soybeans also contain a lot of it.' The ★ position is filled by option 3 (食べ物というと), which follows たんぱく質が多く含まれる (a modifier) and introduces the topic: 'Speaking of foods that contain a lot of protein...'

• 1肉や魚や卵といった ('such as meat, fish, and eggs') modifies もの and must come right before ものが思い浮かぶ.
• 2たんぱく質が ('protein') must come first, as the subject of 多く含まれる.
• 4多く含まれる ('is contained in large amounts') modifies 食べ物 and must follow たんぱく質が: たんぱく質が多く含まれる食べ物.

• 食べ物というと（たべものというと） — speaking of food / when it comes to food
• 〜といった — such as~; like~
• 思い浮かぶ（おもいうかぶ） — to come to mind / to think of
• 含ふくまれる — to be contained / to be included

The correct order is: イベントの準備には【最低でも】【二日はかかるだろうと思われたが】【多くのボランティアの方の協力で】【1日で終わったので】スケジュールに余裕ができた。The full sentence means: 'It was thought that preparing for the event would take at least two days, but thanks to the cooperation of many volunteers, it was finished in one day, so we got some extra time in our schedule.' The ★ position is filled by option 2 (多くのボランティアの方の協力で), which explains why the work finished faster than expected.

• 1二日はかかるだろうと思われたが ('it was thought it would take two days, but') must follow 最低でも and expresses the initial expectation with a contrastive が.
• 3最低でも ('at least') modifies 二日はかかるだろう and must come right before it.
• 41日で終わったので ('because it finished in one day') connects to the final clause スケジュールに余裕ができた and must come at the end.

• 最低さいていでも — at least / at the minimum
• 〜と思われたが（〜とおもわれたが） — it was thought that~, but
• 協力きょうりょくで — thanks to cooperation / with the help of
• 余裕よゆうができる — to have extra time/margin become available