Q1
The manager will not approve the budget proposal ______ it includes detailed cost estimates.
A. although
B. unless
C. because
D. until
Q2
The new regulations require all employees to submit their reports ______ the end of each month.
A. on
B. in
C. at
D. by
Q3
Mr. Johnson was promoted to senior analyst in recognition of his ______ performance last year.
A. exceptional
B. exception
C. except
D. exceptionally
Q4
The factory has recently installed advanced machinery to increase production efficiency and ______ labor costs.
A. reduce
B. reducing
C. reduced
D. reduction
Q5
The conference organizers are still waiting for several participants to confirm their ______ to attend.
A. decide
B. deciding
C. decision
D. decided
Q6
All customer complaints must be handled ______ and documented properly for future reference.
A. promptly
B. promptness
C. prompt
D. prompting
Q7
The CEO emphasized that the success of the new strategy depends ______ the cooperation of all departments.
A. for
B. on
C. with
D. about
Q8
Due to the recent increase in raw material prices, the company has decided to slightly ______ its product prices.
A. rise
B. raise
C. arise
D. raising
Q9
The new software is designed to make data analysis much easier, ______ improving overall efficiency.
A. thereby
B. although
C. however
D. unless
Q10
Employees are encouraged to participate in the training program, which will provide them with skills ______ are essential for leadership positions.
A. what
B. who
C. which
D. that
✅ 解答・詳しい解説(対象スコア付き)
Q1. 正解:B(unless)
対象スコア:600点以上
👉 「unless = 〜でない限り」 → 「詳細なコスト見積もりが含まれていない限り承認しない」という意味。
Q2. 正解:D(by)
対象スコア:500点以上
👉 「by the end of each month = 月末までに」。提出期限を表す定番表現。
Q3. 正解:A(exceptional)
対象スコア:650点以上
👉 「exceptional performance = 卓越した業績」。形容詞が必要。
Q4. 正解:A(reduce)
対象スコア:600点以上
👉 「to + 動詞の原形」で目的を表す。「効率を上げるため、コストを削減するため」。
Q5. 正解:C(decision)
対象スコア:650点以上
👉 「confirm their decision to attend = 出席する決定を確認する」。名詞が必要。
Q6. 正解:A(promptly)
対象スコア:600点以上
👉 「handled promptly = 迅速に処理される」。副詞が必要。
Q7. 正解:B(on)
対象スコア:700点以上
👉 「depend on = 〜に依存する」。熟語問題。
Q8. 正解:B(raise)
対象スコア:650点以上
👉 「raise = 上げる(他動詞)」。一方「rise」は自動詞(価格が上がる)。ここでは「価格を上げる」なので raise。
Q9. 正解:A(thereby)
対象スコア:750点以上
👉 「thereby = それによって」。文全体を修飾して「それによって効率を高める」。
Q10. 正解:D(that)
対象スコア:700点以上
👉 「skills that are essential = 必須のスキル」。関係代名詞 that が正解。
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