12. Someone       at the door. Can you open it?

   A. knocks   B. knocked

   C. is knocking   D. was knocking

12. C

句意:有人正在敲門。你可以把門打開嗎？由句意可知此處應(yīng)用現(xiàn)在進(jìn)行時，故選C。

題目來源：2016年5年中考3年模擬初中英語七年級下冊滬教牛津版 > 單元檢測

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