◎ 题干
— Do you still smoke heavily?
— No. In fact, it is two years since I ____.

[     ]

A. have stopped smoking
B. smoked
D. began to smoke
D. started to smoke
◎ 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“— Do you still smoke heavily? — No. In fact, it is two years since I ____. [ ]A. have stopped smoking B. smoked D. began to smoke D. started to smoke …”主要考查了你对  【一般过去时】  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。