The subject of subjectless sentences

 I had been thinking of a catchy title, but when I finished writing the article, it still eluded me. Then two days later while strolling in the park, the title 'The subject of subjectless sentences' suddenly popped into my head, and I submitted the article immediately.

See my language awareness article in today's Ming Pao.

https://news.mingpao.com/pns/%e8%8b%b1%e6%96%87/article/20210421/s00017/1618942434992/%e8%8b%b1%e8%aa%9eguide-the-subject-of-subjectless-sentences