【单选题】【消耗次数:1】
She_______ the door before she goes away.
had locked
is locking
has locked
was locking
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【单选题】 She ________ the door before she goes away.
①  had locked
②  is locking
③  has locked
④  was locking
【单选题】 2.She the door before she goes away.
①  had locked
②  is locking
③  has locked
④  was locking
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①  had locked
②  is locking
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