In this sentence it is the same as "着“

OK, Ive been learning organic chemistry last term. hope I didnt forget all of them. But I didnt figure what exactly you want to ask We call R--SH 某硫醇, if the chemical compound contains a “C”, e.g CH3--SH, then we call it 甲硫醇 if it contains two, we use 乙. three, 丙 etc. Hope it helps you

hang on is always used in phone call

一月三十号

我七点起床。我洗漱完，然后化妆。我吃完早饭，然后喝咖啡。我学习汉语。我不上班。今天，我感冒了。我要请假因为我发烧了。我吃药。我在家休息。

It would be better if u used more commas than stops. 

A sad music

somebody say you got a new friend , does he love you better than me? there is  big black skies over my town, i keep dancing on my own, i'm in the corner watching you kiss him... but i'm the guy you are taken to your home