didn't study hard.He is _____ failing the exam.

问题描述:

didn't study hard.He is _____ failing the exam.
He didn't study hard.He is _____ failing the exam.
A.in danger
B.in danger of
C.dangerous

选B.
in danger of“处于.的危险中”
意为:他不努力学习,他考试正在处于危险中~