Humans are destroying nature day by day, _____of course, will cause punishment sooner or later.
He is a man who lacks experience and determination, and I think he is not ________ the job.
It was in the yard of his old house _____ he grew up ____ he dug out a pot of gold.
During the Spring Festival, the police are ______ the public safety.
He is a man of great help, with ________ help you can solve the problem easily.
We saw a ________ big snake in the grass yesterday, which ________ all of us to death. A. frightened; frightened C. frightened; frightening C. frightening; frightened D. frightening; frightening