Question

英语句子的语法分析？

I'm still very optimist,and I believe that progress on even the world's toughest problems is possible------and it's happening every day.

Answer 1

我仍然非常乐观，我相信即使是世界上最棘手的问题也有可能取得进展——而且这种情况每天都在发生。
I believe that 宾语从句 progress on even the world's toughest problems is possible是从句部分。其中，on even the world's toughest problems 是介词作定语修饰progress。

Answer 2

I'm still very optimist 主系表
I believe that progress on even the world's toughest problems is possible-----believe引导的宾语从句
it's happening every day 强调句