问题
选择题
He knew the files could be of help to took over the job.
A．anyone
B．someone
C．whoever
D．who
答案
答案：C
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