单选题
— Who ______ that piano?— My sister, when she ______ time.
A、
[A] plays; has
B、
[B] is playing; has
C、
[C] plays; is having
【正确答案】
B
【答案解析】
have表示拥有时，不用正在进行时。根据when she has time可以推断问句中应该用一般现在时。
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