问题标题:
Thenewemployeeshadtogooverthesafetyregulationsseveraltimes____theyunderstoodthem.A.sinceB.beforeC.unlessD.when我怎么感觉b和c意思上都对啊
问题描述:
Thenewemployeeshadtogooverthesafetyregulationsseveraltimes____theyunderstoodthem.
A.sinceB.beforeC.unlessD.when
我怎么感觉b和c意思上都对啊
黄厚宽回答:
答案为B
译为:新来的员工必须多次浏览安全守则,直到他们彻底理解了.
如果要填unless则应改为unlesstheyhadunderstoodthem.
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