I don't know _________.(我不知道什么时候举办晚会)
问题描述：
I don't know _________.(我不知道什么时候举办晚会)
答
(1)I don't know when the evening party will be held.
(2)I don't know when to hold the evening party.
答
因为回头的草都是被马踩过的，所以它是不会吃的。
答
I don't know when to have the evening party.
答
when to have a party.
答
I don't know when to be held the evening party.