Difficulty: Beginner–600
Q1.
The marketing team will begin the new campaign ______ next Monday.
A. at
B. on
C. in
D. for
Q2.
Mr. Tanaka has worked at the company ______ more than ten years.
A. since
B. for
C. during
D. until
Q3.
Our company is looking for someone who can ______ both English and Spanish.
A. speak
B. spoke
C. speaking
D. speaks
Q4.
The report must be submitted before the end of the day, ______?
A. is it
B. isn’t it
C. mustn’t it
D. shouldn’t it
Q5.
Due to technical problems, the website is temporarily ______.
A. operate
B. operated
C. operating
D. unavailable
✅ Answers & Explanation
Q1 → B (on)
“on + day” が基本。
→ on Monday
Q2 → B (for)
“期間（ten years）” には for を使う。
Q3 → A (speak)
“can + 動詞の原形”。
Q4 → C (mustn’t it)
“must be submitted” → must の付加疑問は mustn’t it。
Q5 → D (unavailable)
“temporarily” の後は「一時的に利用できない」＝ unavailable の形容詞。
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