He knew the files could be of help to took over the job.
A. anyone
B. someone
C. whoever
D. who
网友回答
A. anyone
B. someone
(答案→)C. whoever
D. who
解析：这是一个复合句，He knew是主谓，后面the files could be of help to whoever took over the job.是宾语从句（省略了that）。这个宾语从句里面又套有一个宾语从句whoever took over the job