单项选择题
According to cognitive theories of emotion,()anger occurs when()individuals believe that they have been harmed and that()harm was both avoidable and undeserved．
A．a.../...the B．an.../...a C．/.../...the D．/.../...a
单项选择题 The old man is in（）habit of going for（）walk along（）river every morning except that it rains.
