I don't know when I will come back改为同义句
I don't know when I will come back改为同义句
把复合句改成简单句:1.i don't know when i will come back.→i don't know
I don't know when he _(come)back.when he _(come)back,I will
I don't know when the Greens will go back to England.变为同义句
I don't know when he can go back home.如何改为同义句
I don't know when I will finish my homework改为同义句
I don't know when he will have the meeting 同义句 I don't know
I don’t know when it is that he will come back.
I don't know when he _(come)back.
I don‘t know how soon he will come back
I don't know when I can post the letter.改为同义句I don't know __
will he come back on Sunday?I don't know.(合并为一句)