Heroes ______ their life ______ becoming the best they can be, whether it is President of the United States, a mother, or a firefighter. 

 Luckily, the new pills didn’t make my brother’s hair _________.

---How do you usually spend your evening?---I usually ____. But if there’s a new film on TV, I watch it.

After a long time’s hard work, he _________ Qinghua University last year.

---How did it _________ that all the flowers died ? ---I had forgotten to water them.