To think that + 從句!

由 to think that…構成的感嘆句，表示驚訝及意外的情緒。如：

And to think that I trusted him! 我竟然信任了他!

To think that I was once a billionaire! 想想看! 我還會是個億萬富翁呢!

that 從句有時用虛擬語氣，且 that 有時也可省略。如：

Dear, dear! To think that I should be late on this particular morning, of all others! 哎呀，哎呀! 想不到偏偏要今天早上遲到!

To think he would come to anything like that! 真沒想到他竟有這樣的下場!

To think that she should have died such a tragic death! 沒想到她會死得這樣慘!