C
过去进行时
she knocked at the door 和我正在cooking同时进行
I __ when she knocked at the door.A.cook B.cooks C.was cooking D.am cooking
I __ when she knocked at the door.A.cook B.cooks C.was cooking D.am cooking
英语人气:203 ℃时间:2019-08-21 02:25:43
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