Q1. The new marketing campaign was designed to appeal to younger consumers, _____ prefer online advertising over traditional media.
A. who
B. whom
C. whose
D. which
Q2. The CEO demanded that all reports _____ submitted before the end of the quarter.
A. are
B. be
C. were
D. have been
Q3. Sales figures for the second quarter were lower than expected, _____ the sudden increase in raw material costs.
A. due to
B. because
C. as a result
D. despite
Q4. The manager will not approve the proposal unless the budget plan is revised to make it more _____.
A. competition
B. compete
C. competitive
D. competitiveness
Q5. The research team was unable to meet the deadline, partly _____ unexpected technical difficulties.
A. because
B. because of
C. due
D. resulted in
Q6. The newly released smartphone is equipped with a processor twice as fast as _____ of its predecessor.
A. that
B. those
C. it
D. them
Q7. The financial analyst expressed concern that the company’s profits could decline _____ rising fuel prices.
A. although
B. since
C. because
D. due to
Q8. Employees are encouraged to submit suggestions for improving efficiency, _____ they will receive small incentives.
A. for which
B. from which
C. to which
D. by which
Q9. The director requested that the new policy _____ implemented immediately to prevent further confusion.
A. is
B. was
C. be
D. being
Q10. The training program aims to enhance not only employees’ technical skills _____ their communication abilities.
A. but also
B. and
C. or
D. nor
✅ 解答・詳しい解説（＋目標スコア）
Q1. 正解：A（who）
→ 「〜する若者たち」という関係代名詞主格。文構造は “younger consumers who prefer online advertising”。
🎯 目標スコア：850点
Q2. 正解：B（be）
→ “demand that + 主語 + 動詞の原形” は仮定法現在。TOEIC頻出の正式要求表現。
🎯 目標スコア：900点
Q3. 正解：A（due to）
→ 名詞句「the sudden increase」に続くのは前置詞 “due to”。“because” は接続詞でNG。
🎯 目標スコア：870点
Q4. 正解：C（competitive）
→ “make it more ___” に形容詞が入る。意味は「より競争力のある」。
🎯 目標スコア：800点
Q5. 正解：B（because of）
→ “because of + 名詞”＝「〜が原因で」。文構造に注目。
🎯 目標スコア：850点
Q6. 正解：A（that）
→ “as fast as that of its predecessor”：「前モデルのものの2倍速い」。
🎯 目標スコア：900点
Q7. 正解：D（due to）
→ “decline due to rising fuel prices”：「燃料価格上昇のため利益が下がる」。因果を名詞で表す。
🎯 目標スコア：880点
Q8. 正解：A（for which）
→ 「それに対して（for）」＋関係代名詞。incentivesは「それに対して与えられる」。
🎯 目標スコア：930点
Q9. 正解：C（be）
→ “request that + 主語 + 動詞の原形”＝仮定法現在。TOEIC Part 5の鉄板パターン。
🎯 目標スコア：950点
Q10. 正解：A（but also）
→ “not only A but also B”：「AだけでなくBも」。ペア表現の完成。
🎯 目標スコア：800点
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