◎ 题干

49. He goes _____ at 8 a.m. and comes _____ at 5 p.m. Today he is _____.
A.on duty; off duty; on night dutyB.on his duty; off the duty; on night duty
C.to duty; from duty; at night dutyD.in duty; out duty; at night duty
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“49. He goes _____ at 8 a.m. and comes _____ at 5 p.m. Today he is _____.A.on duty; off duty; on night dutyB.on his duty; off the duty; on night dutyC.t…”主要考查了你对  【介词和介词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。