راهنمایی در مورد یک سوال

Question

We are familiar with the fact that the psychologist was interested in neurology and nervous diseases for a long time before he created the method of research and treatment ....... .

 

1) that he is known as

2) for which he is known 

ببخشید ، در این سوال مورد اول چرا غلط است؟ 

Answer 1

چون عبارت مصطلح known for something هست، یعنی به چیزی شهرت داشتن. 

دوم اینکه در متون رسمی، جمله با حرف اضافه نباید تموم بشه.