His father got him a job in a bank but soon it became clear he was not fit for that kind of work．
A. why
B. what
C. whether
D. that
网友回答
A. why
B. what
C. whether
(答案→)D. that
解析：考查句型：it is/bee clear that 很显然，句意：他的父亲在银行给他找了一份工作，但是不久发现很显然他不适合这种工作。故选D。