摘要： I don’t know the reason why the house is so dirty. I don’t know the reason the house is do dirty.
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I don't know the reason ________ the house is so dirty．
[ ]
A．
that
B．
which
C．
why
D．
when
观察下面句子中的画线部分并将其译成汉语
I don’t know the reason why the house is so dirty．
_________________
观察下面句子中的画线部分并将其译成汉语。
I don’t know the reason why the house is so dirty．
_____________________________
观察下列句子中的画线部分并将其译成汉语。
1．We thought you were a person from whom we could expect a good decision．
___________________
2．Do you remember the day when we left you in charge?
___________________
3．This is not a family where bad behavior goes unpunished．
___________________
4．I don’t know the reason why the house is so dirty．
___________________