She was frightened by a dog.
她被一条狗吓坏了.
I was frightened when I saw the nasty gash in her arm.
她胳膊上又深又长的大伤口吓坏了我.
Don't be frightened.We're not going to hurt you.
I was frightened of being left by myself in the house.
Her father had an awful temper and she was always frightened of him.
frightened to do sth
The boy was frightened to speak.
She's frightened that her ex-husband will find her.
To tell the truth,I was frightened to death (=very frightened) .