Soho Korean 考試練習
這題你會嗎？
一題 EPS-TOPIK 練習題。選一個答案，看看為什麼對或錯。
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빈칸에 들어갈 가장 알맞은 것을 고르십시오.
기계를 청소하 꼭 전원을 끄세요.
選一個答案
答對了 不是這個 · 答案：①
Correct. 「청소하기 전에」 = before cleaning. You must turn the power off (전원을 끄다) first, and only then clean the machine — a running machine is dangerous to clean.
「청소하고 나서」 = after cleaning. That is the wrong order: you would clean the machine while the power is still on. The power must go off before cleaning.
「청소하는 동안」 = while cleaning. The power has to be off from the start, not turned off in the middle of cleaning.
「청소한 다음에」 = after cleaning — the same wrong order as 「-고 나서」. Turning the power off comes before cleaning, not after.
本頁的解說為英文。
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非官方練習教材。Soho Korean 與 HRD Korea（Human Resources Development Service of Korea）、NIIED（National Institute for International Education）及韓國雇用勞動部（Ministry of Employment and Labor）沒有任何隸屬、背書或合作關係。EPS-TOPIK 和 TOPIK 是這些機關舉辦的考試名稱；這裡的題目全部由 Soho Korean 撰寫。