There was a car accident on the highway this morning.
While traveling on the freeway, you must obey the speed limit.
The government built a ten-lane superhighway to solve the city's traffic problems.
People have to pay to drive on a turnpike.
Drunk driving is always dangerous.
This river is dangerous to swim in.
Staying outdoors when it is very cold is dangerous for an old person.
Mack and his wife like to live dangerously; they like skydiving.
I help Dad cut grass in the yard on weekends.
That prairie is home to many rare animals.
I don't like that guy．
John is just a fall guy. The real thief is still at large.
Andy looked at the barking dog with fright.
Sarah has no stage fright; in fact, she enjoys making public speeches.
You should not let your son watch that movie because it might frighten him.
I was frightened to death at the sight of the horrible accident．
Tom frightened Jim into keeping quiet.