A-A+

The article ____ on this subject was written b

2022-08-05 17:45:42 问答库阅读 170 次

问题详情

The article ____ on this subject was written by Mr.Black.
A.refen"ed
B.referring to
C.referred to

答案：C
考点：非谓语动词。
解析：此处为过去分词referred作后置定语，意为“被提到的…”，refer为不及物动词，后必须带介词to。