It takes years to _________ a good name but only seconds to destroy it. For example, some celebrities(名人)were caught taking drugs by the police.
The _____ of his clothes indicated too clearly that he had been playing football.
When the entire class worked together they finished the project _____.
Paper making began in China and from there it _____ to North Africa and Europe.
Children who are over-protected by their parents may become _____.
It would be _____ a risk to let the child go to school by himself.