Q1. The new policy will take effect ______ January 1.
A. at
B. on
C. in
D. from
Q2. The manager insisted that all employees ______ the safety guidelines carefully.
A. read
B. reads
C. reading
D. to read
Q3. Customers are encouraged to complete the survey so that the company can better understand their ______.
A. prefer
B. preferred
C. preference
D. preferences
Q4. The CEO will visit the branch office next week to ______ the performance of the sales team.
A. evaluate
B. evaluation
C. evaluator
D. evaluating
Q5. The new cafeteria menu offers more choices than the old one, and it is ______ healthier.
A. considered
B. considerable
C. considerably
D. consideration
Q6. The contract was signed last Friday, but it will not become ______ until the documents are reviewed by the legal department.
A. effect
B. effective
C. effectively
D. effectiveness
Q7. We will not ship the order until the payment has been ______.
A. receive
B. receiving
C. received
D. receives
Q8. The marketing team presented an innovative strategy, which was ______ accepted by the board of directors.
A. enthusiastic
B. enthusiastically
C. enthusiasm
D. enthuse
Q9. The factory will be closed for three days to conduct routine equipment ______.
A. maintain
B. maintaining
C. maintenance
D. maintained
Q10. The report must be submitted no later than Friday, ______ it will not be included in the monthly review.
A. and
B. so
C. but
D. or
✅ 解答・解説
Q1. 正解：B
対象スコア層：400点以上
解説：日付の前置詞は on。
Q2. 正解：A
対象スコア層：600点以上
解説：「insist that + 主語 + 動詞原形」仮定法。
Q3. 正解：D
対象スコア層：500点以上
解説：「their」に合わせて複数形 preferences。
Q4. 正解：A
対象スコア層：500点以上
解説：動詞が必要 → evaluate。
Q5. 正解：C
対象スコア層：600点以上
解説：「〜ly」で副詞 → considerably。
Q6. 正解：B
対象スコア層：500点以上
解説：「become effective = 有効になる」。
Q7. 正解：C
対象スコア層：400点以上
解説：「has been + 過去分詞」→ received。
Q8. 正解：B
対象スコア層：600点以上
解説：「〜ly」で副詞 → enthusiastically accepted。
Q9. 正解：C
対象スコア層：400点以上
解説：routine equipment maintenance（保守点検）。
Q10. 正解：D
対象スコア層：700点以上
解説：「no later than Friday, or it will not…」条件表現。
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