How did Jim pass the exam—He worked day and night for two months. ______, hepassed it.

下列词语书写完全正确的一项是( )

The thing that __________ is not whether you fail or not, but you try or not.

It’s _____ hard problem for the twins that____ of them can work it out.

We shouldn’t spent our money testing so many people, most of __________ are healthy.