What is the _______ between the two men—- They are colleague(同事). Their job is to collect _______ important information for the boss.

The last river __ _ they crossed is two miles wide

By the end of next month she _______ the small village for more than ten years

It was probably at that moment _____ I understood what kindness really was.

George is going to talk about the geography of his country, but I’d rather he _____ more on its culture. [ ]