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【单选题】
—What do you often do at weekends?
—I often _____ my grandparents. （2014北京）
A.
visit
B.
visited
C.
have visited
D.
will visit
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题目标签：北京
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】________ volleyball is her main focus，she's also great at basketball.(2011·北京)
A.
Since
B.
Once
C.
Unless
D.
While