问题
选择题
It is the most instructive lecture that ________since I came to this school.
A attended B had attended C am attending D have attended
答案
答案：D
本题考察时态。句意为"这是从我来到这所学校到现在听过的最具启发性的讲座。"从过去延续到现在的动作，故选现在完成时，选D；
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