The rent alone is 300 .alone是形容词 是不是应该放在IS 后面

The rent alone is 300 .alone是形容词 是不是应该放在IS 后面 leave them alone,alone在这里是形容词还是副词 He is lonely 还是alone呢?be动词后面不应该加形容词吗.像He is lucky to .这里就不能用 being alone is to be not alone 系动词后面不是跟形容词吗,可是为什么会有He is alone的说法呢 The house stands alone on the hillside.句中的alone为什么是形容词而不是副词? alone是动词还是形容词 it is dangerous for children to swim alone.为什么用 alone?动词后不应该 her sister is l( ).she is alone in the classroom Jim is I( ) he is alone in the classroom The girls is quiet.She always likes to ( ）A.alone B.be alone What food is never alone