Who knows but it will rain tomorrow?为什么是否定句呢

Who knows but it will rain tomorrow?为什么是否定句呢 It will rain tomorrow改成否定句 It will rain tomorrow.同义句 Will it rain tomorrow will it rain tomorrow? It will rain tomorrow.改成否定句,一般疑问句,肯定回答和否定回答大神们帮帮忙 it will rain tomorrow对吗 The newspaper says it will rain tomorrow.(同义句转换) 英语选择题11.I'm afraid it ______ tomorrow, but who knows? A. may 为什么I don't know if it will rain tomorrow It will rain tomorrow.对tomorrow提问. I think it will rain (否定句怎么改)