I'm single. - i'm single, too.

我单身的-我也单身的

My boss knows I'm single and singles me out.

上司因为知道我单身给了我很多工作任务，搞得我一直单身。

I hate having to think about possibly becoming a single mother because I'm single. Have I made myself clear?

我不想去考虑成为单亲妈妈的可能性，因为我还单身。我说清楚了吗？

How do I make my home environment comforting while I'm single?

作为单身人士，我应该怎样让居住环境尽量舒适呢？