Hundreds of workers sat ________ on the factory floor waiting for the assembly line to start again. ( 章节：1 难度：3)
- A、idle
- B、fine
- C、desperate
- D、similar
正确答案:A
答案解析:有
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Hundreds of workers sat ________ on the factory floor waiting for the assembly line to start again. ( 章节：1 难度：3)
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