“Do you know who cleaned blackboard yesterday?"假设是Jack干的,该怎样回答?帮帮我.我不知道应该是：Yes,Jack did. 还是Yes,Jack cleaned.谢谢各位!

“Do you know who cleaned blackboard yesterday?"假设是Jack干的,该怎样回答?帮帮我.我不知道应该是：Yes,Jack did. 还是Yes,Jack cleaned.谢谢各位!
“Do you know who cleaned blackboard yesterday?"假设是Jack干的,该怎样回答?
帮帮我.我不知道应该是：Yes,Jack did. 还是Yes,Jack cleaned.谢谢各位!

“Do you know who cleaned blackboard yesterday?"假设是Jack干的,该怎样回答?帮帮我.我不知道应该是：Yes,Jack did. 还是Yes,Jack cleaned.谢谢各位!
如果只是强调知道或不知道,则回答YES or NO即可.
若是强调是谁的话,就直接回答Jack did.即可.

不能说第二个就是错的
其实都对
但是前面一个回答符合语言习惯

争吵回答是Jack did，不用回答yes or no。

Yes,Jack did