题目

This is the biggest laboratory _____we have ever built in our school.A. which B. what C. where D. / 答案：【答案】D【解析】句意：这是我们学校建的最大的实验室。考查定语从句。A. which哪一个；B. what什么；C. where哪里。这里使用了定语从句，先行词是the biggest laboratory，定语从句缺少宾语，因为先行词被形容词最高级修饰，只能用that引导定语从句或者省略关系代词，故答案为D。—____ your sister know Lucy?—No, she ____.A.Do; don'tB.Does; doesn'tC.Does; don'tD.Do; doesn't