（）是做人的最重要、最根本的思想品质，是社会建立良好道德风尚的主观前提。
A.友善
B.奉献
C.诚信
D.勤俭
参考答案：C
Jenny went into the room, took off her coat and _____ down on a sofa.[ ]
A. would sit
B. was sitting
C. sat
D. had sat
焦虑症属于（）
