A rescue worker risked his life saving two tourists who had been trappedhad been trapped(trap) in the mountains for two days.
【考點(diǎn)】過去完成時(shí);過去完成時(shí)的被動(dòng)語態(tài).
【答案】had been trapped
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2024/12/5 19:30:2組卷:127引用:16難度:0.8
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