◎ 题干
— Is your father still teaching?
— Yes. It's about sixteen years ______ he started teaching.
[     ]
A. until
B. after
C. since
D. with
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Is your father still teaching? — Yes. It's about sixteen years ______ he started teaching. [ ]A. until B. after C. since D. with …”主要考查了你对  【从属连词】  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。