Question

i hope she will answer my letter soon 对吗，还是

i hope her answer my letter soon。。。

Answer 1

I hope she will answer my letter soon 是对的
意思是：“我希望她尽快给我回信”

i hope her answer my letter soon这种结构是错误的

Answer 2

I hope she will answer my letter soon.
是对的，从名少略了引导词that

其实这个句子应该是这样的：

I hope that she will answer my letter soon!

Answer 3

I hope she will reply my letter soon. Hope 后面是单独的部分，用she/he/I

类似的句子有， I hope I can...