最近阅读文章有看到下列标题
Ottawa Public Health or a health care provider has instructed me to
self-isolate because I have been in close contact with a person" who is being
tested for COVID-19" or has COVID-19.
想请教非常基础的文法问题....想请问为什么这边不是who is tested for
而是 who is being tested 呢?
这个是文法内的哪一部分呢?我应该往"现在分词"用法的方向搜寻?
感谢大家....