I don't know when he will be back. When he comes back, he will give me a call
这句话是陈述句,不能用问号,把?改成。就行了。
我不知道他是什么时候回来的【。】
亲~,不明白请追问,满意请采纳,愿合作愉快!
*I don't know when he will come backif he has returned, ...*I hear nothing of the date he will come backif he has returned, ...
*I am ignorant of the date he will come backif he has returned, ...
*I am insensible of the date of his returnif he has come back, ...
be unaware of
*I am in the dark about the date of his returnif he has come back, ...
欢迎分享,转载请注明来源:优选云