Did you hear someone__door while you __TV last light Yes,I did,I opened the door but found nobodyoutsideAknocking at was watchingBknock at were watching选C,为什么不选A,hear sb do sth 和doing都有啊

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Did you hear someone__door while you __TV last light Yes,I did,I opened the door but found nobody
outside
Aknocking at was watching
Bknock at were watching
选C,为什么不选A,hear sb do sth 和doing都有啊

you 要用were 啊!
很高兴为你解答!
老师祝你学习进步!
请及时采纳哦!多谢你的问题!^_^

你只列了A和B两个选项
不过A的后半部分很显然已经是不对的了。后面主语是you, 系动词过去式是were

knocking at, were watching
knock at, were watching
A中答案was不能和you搭。
祝你学习进步!给个采纳赞同哟。。。。。。