1. Sometimes I’m glad to be alone.
Alone 可以是形容词，表示“单独的，独自的”，还可以是副词，表示客观上的“孤单，独自一人”相当于 by oneself.
Eg. He lives alone/by himself.
(拓展) alone 的近义词是lonely. Lonely 只做形容词，表示“孤独的，寂寞的”有浓厚的感情色彩，修饰地点名词时，意为“荒凉的，偏僻的”
I didn’t feel lonely though I was alone in the lonely mountain.
翻译______________________________________________
She lives __________,but she doesn’t feel ___________
