作业帮按要求完成句子.We parents having dinner when someone was knocking at the door.(对划线部分提问）划线部分是：having dinner - - - - when someonce was knocking at the door?
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按要求完成句子.We parents having dinner when someone was knocking at the door.(对划线部分提问）划线部分是：having dinner - - - - when someonce was knocking at the door?
按要求完成句子.We parents having dinner when someone was knocking at the door.(对划线部分提问）
划线部分是：having dinner
- - - - when someonce was knocking at the door?
按要求完成句子.We parents having dinner when someone was knocking at the door.(对划线部分提问）划线部分是：having dinner - - - - when someonce was knocking at the door?
你的题目少了东西,应该还有个were,对做某事提问,应该用疑问词what,剩余部分改为一般疑问句were your parents加在what后即可,所以答案是What were your parents doing,不可缩写,缩写过去式就不存在了,你的题目是不是抄错了?
What were your parents doing when someone knocked at the door?
when从句用一般过去时更好。
(What're your parents doing) when someonce was knocking at the door?
你的题目少了东西，应该还有个were，对做某事提问，应该用疑问词what，剩余部分改为一般疑问句were your parents加在what后即可，所以答案是What were your parents doing,不可缩写，缩写过去式就不存在了，你的题目是不是抄错了？