作业帮Someone_________ at the door when she was cooking in the kitchen应该填knocked还是was knocking?
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Someone_________ at the door when she was cooking in the kitchen应该填knocked还是was knocking?
Someone_________ at the door when she was cooking in the kitchen
应该填knocked还是was knocking?
Someone_________ at the door when she was cooking in the kitchen应该填knocked还是was knocking?
应该说两者都没有语法错误,但感觉前者更好.
因为knock是一个简单动作,并不是可以持续的.
另外,这句话主要还是强调 “她在厨房做饭时”,“有人敲响了门”并不时强调正在进行.
knocked表示过去，when
后面是一个从句
语法上两个都可以，
但习惯表达是 knocked
敲门通常不是连续性的动作，因此不用进行时态。