PSAs are often run _____ free, and are ______ to educate people about health, safety, or any other problem that affects public welfare.
The parks will also honor _________ who helped the survivors as well as who died in the terrible disaster.
---- Hello, mum, I’ve won the high school speaking competition about New Tangshan. ---- _________.
Workers built shelter for survivors, _________ homes had been destroyed.
In such a _________ night, the _________ people couldn’t fall into sleep.
When the earthquake happened, people felt as if the world was _________.