Q1
The new software update will be available to all users ______ the end of this month.
A. until
B. by
C. during
D. for
Q2
All employees must submit their travel reimbursement forms ______ two weeks of returning from their business trips.
A. on
B. within
C. at
D. until
Q3
The marketing director requested that the new logo design ______ finalized before the presentation next Monday.
A. is
B. will be
C. be
D. was
Q4
The company’s annual report showed that profits grew ______ 12 percent compared with the previous year.
A. in
B. on
C. by
D. at
Q5
Because the contract was signed later than expected, the project launch has been ______ postponed.
A. temporarily
B. temporary
C. temperate
D. temperament
Q6
All interns are expected to complete the training program ______ supervision from their team leaders.
A. under
B. over
C. on
D. between
Q7
The CEO’s speech emphasized the importance of innovation, ______ she believes is the key to long-term success.
A. which
B. that
C. what
D. whose
Q8
Our company’s new energy policy aims to reduce waste and improve efficiency without ______ the quality of service.
A. affecting
B. affect
C. to affect
D. affects
Q9
The research team is still uncertain ______ the new material can be mass-produced at a reasonable cost.
A. how
B. that
C. whether
D. what
Q10
Due to unforeseen circumstances, the product launch has been postponed until next month, ______ marketing materials will be updated accordingly.
A. so
B. but
C. and
D. because
✅ 解答・詳細解説(+目標スコア)
Q1. 正解:B(by)
📘 “by the end of this month”=「今月末までに」。期限を示す定番表現。
🎯 目標スコア:700点
💡 “until”は「〜までずっと(継続)」の意味で違う。
Q2. 正解:B(within)
📘 “within two weeks”=「2週間以内に」。
🎯 目標スコア:750点
💡 TOEICで頻出の時間表現。期限関連は確実に覚えよう。
Q3. 正解:C(be)
📘 “request that + 主語 + 原形動詞” は仮定法の要求構文。
🎯 目標スコア:900点
💡 TOEIC上級者は「suggest / recommend / request」構文をマスターしている!
Q4. 正解:C(by)
📘 “grow by 12%”=「12%増加した」。
🎯 目標スコア:800点
💡 数値の増減には “by” が基本。TOEIC頻出表現。
Q5. 正解:A(temporarily)
📘 副詞が必要。「一時的に延期された」。
🎯 目標スコア:750点
💡 品詞問題は意味と文構造の両方から判断。
Q6. 正解:A(under)
📘 “under supervision”=「監督のもとで」。
🎯 目標スコア:700点
💡 TOEICでは “under pressure / under review” などの熟語も出る。
Q7. 正解:A(which)
📘 “innovation, which she believes …”=非制限用法。前文全体を修飾。
🎯 目標スコア:880点
💡 コンマ+関係代名詞 “which” は上級構文の定番。
Q8. 正解:A(affecting)
📘 前置詞 “without” の後は動名詞。
🎯 目標スコア:770点
💡 “without doing” で「〜せずに」。
Q9. 正解:C(whether)
📘 “uncertain whether …”=「〜かどうか確かでない」。
🎯 目標スコア:800点
💡 “whether” は名詞節の中で「〜かどうか」の意味。
Q10. 正解:C(and)
📘 前文「延期された」+ 後文「資料も更新される」。→ 同方向の接続。
🎯 目標スコア:750点
💡 “and” は文脈のつながりを判断して選ぶ!


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